Add changelog.md file

Author: harikt

CHANGELOG.md

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+# CHANGELOG
+
+## 2.3.1
+
+- (DOC) Update the documentation [128](https://github.com/auraphp/Aura.Filter/pull/128), [129](https://github.com/auraphp/Aura.Filter/pull/129)
+- (FIX) PHP Notice when trying to sanitize a string to integer  [132](https://github.com/auraphp/Aura.Filter/issues/132)
+- (ADD) 'phpunit/phpunit' as require-dev dependency in composer.json .
+- (ADD) Added CHANGELOG.md file.
+- (REMOVE) Removed CHANGES.md file.
+
+## 2.3.0
+
+- (ADD) Implement JsonSerializable in the Failure class
+- (DOC) Update the documentation
+- (FIX) Removed undefined but registered sanitizers from SanitizerLocator
+
+## 2.2.0
+
+This release adds new validation and sanitizing rules:
+
+- `lowerCase` for all-lower-case values
+- `upperCase` for all-upper-case values
+- `titleCase` for title-cased values
+- `lowerCaseFirst` for values where the first character is lower-case
+- `upperCaseFirst` for values where the first character is upper-case
+
+## 2.1.0
+
+This release adds an `isNotBlank()` validation specifier, and fixes a bug where sanitizing `to()` a rule on a missing field raised a notice.
+
+## 2.0.0
+
+First stable release.
+
+- (FIX) The Spec class now reports failures better when closures are used in HHVM.
+
+- (TST) Improved testing.
+
+## 2.0.0-beta3
+
+Third beta release.
+
+- (BRK) Due to new blank-checking in ValidateSpec::applyRule(), remove 'blank' validation rule, and add 'isBlank()' validation spec method.
+
+- (FIX) Filter arguments using arrays, resources, and objects (including closures) no longer cause errors when creating the default filter message.
+
+- (ADD) Validation now fails on missing (unset or null) fields.
+
+- (DOC) Update documentation.
+
+## 2.0.0-beta2
+
+Second beta release.
+
+- (ADD) Add UTF-8 support in Alpha, Alnum, Strlen*, and Word filters with help from @mivanov93.
+
+    - All string-length filters are now multi-byte aware using either `mbstring` or `iconv` extensions.
+
+    - In alnum and alpha rules, use unicode letters and digits instead of ctype.
+
+    - In word rules, use unicode letters and digits instead of \w and \W.
+
+- (ADD) More robust email validation based on is_email() from @dominicsayers, plus IDN support as suggested by @dg via the `intl` extension.
+
+- (TEST) Update Travis-CI config to use containers.
+
+- (DOCS) Update relevant documentation.
+
+## 2.0.0-beta1
+
+First 2.0 beta release.
+
+- BREAK: Renamed class Filter to SubjectFilter.
+
+- BREAK: Removed method SubjectFilter::strict() and all "strict" behavior, as get_object_vars() is not guaranteed in some objects (e.g. magic get/set vs public properties)
+
+- BREAK: Replaced method SubjectFilter::getMessages() et al with getFailures(); failures are now reported as a FailureCollection instead of as an array of text messages.
+
+- BREAK: Removed classes Rule\Validate\Ipv4 and Ipv6 in favor of allowing flags on
+  Rule\Validate\Ip.
+
+- BREAK: Removed class Rule\Validate\InTableColumn entirely, as it requires a PDO connection. This is better implemented as part of a group of database-related filters, rather than as a special case herein.
+
+- BREAK: Moved namespace Rule\Locator to Locator.
+
+- BREAK: Renamed class Spec\AbstractSpec to Spec\Spec.
+
+- BREAK: Removed method Spec\Spec::getFailureMode().
+
+- BREAK: Moved constants from SubjectFilter to Spec\Spec.
+
+- BREAK: Removed methods ValueFilter::assert() and setExceptionClass().
+
+- ADD: Class FilterFactory now takes two constructor params, $validate_factories and $sanitize_factories, to allow injection of rule factories at construction time.
+
+- ADD: Class AbstractStaticFilter to allow users to create static value filters.
+
+## 2.0.0-alpha1
+
+First 2.0 dev release; breaking changes are coming.
+
+## 1.1.0
+
+- Add Translator::set() method, to set custom messages.
+- Docblock and metadata corrections.
+
+## 1.0.2
+
+Hygiene release: docblock and Composer updates.
+
+## 1.0.1
+
+Hygeine release: point travis status badge to develop branch.
+
+## 1.0.0
+
+- [ADD] German translations; thanks @geissler
+
+- [ADD] Rule\Isbn from @geissler
+
+- [DOC] Docblock cleanup (mostly style, some typo fixes and return type
+  additions)
+
+- [ADD] RuleCollection::addMessages(), to complement Aura.Input
+  Filter::addMessages(), per @harikt
+
+- [CHG] Translator::translate() to deal with array values.
+
+- [CHG] Rule\InKeys to add a 'keys' pseudo-param, for message translations
+
+- [DOC] Fixed wrong parameter order in readme; thanks @chrissound
+
+## 1.0.0-beta2
+
+There are some BC breaks in this release, but it's a "Google" beta, so ...
+
+- [NEW] Rule\All: the value must pass all of the specified sub-rules.
+
+- [NEW] Rule\Any: the value must pass any one of a series of sub-rules.
+
+- [NEW] Rule\Closure: pass a closure to filter the value.
+
+- [NEW] Rule\Locale: the value must be a locale code.
+
+- [NEW] Rule\Method: call a method on the value object being filtered so that
+  it may filter itself.
+
+- [CHG] Various typo fixes from pborrelli.
+
+- [CHG] In all rules, make validate()/sanitize() public so they can be called
+  directly from custom rules.
+
+- [NEW] Add translation facility and internationalization messages.
+
+- [REF] Remove StdClass typehints (objects don't descend from StdClass)
+
+- [BRK] Remove property $message; replace with $message_map and $message_key.
+
+- [ADD] Property $params to retain params passed to validate() and sanitize().
+
+- [ADD] Methods setParams(), setMessageKey(), and getParams().
+
+- [CHG] Method is(), isNot(), et. al. set the appropriate message key.
+
+- [ADD] Method RuleCollection::useFieldMessage() to specify a single message
+  to be used when a field fials one or more of its filter rules
+
+- [BRK] Registry entries *must* be wrapped in a callable from now on
+
+- [FIX] In Rule\DateTime, improve checking for valid dates
+
+- [ADD] Method RuleCollection::setRule() so we can implement Aura.Input FilterInterface
+
+- [CHG] For standalone scripts/instance.php usage, moved all rules to a rule
+  registry located in scripts/registry.php
+
+
+## 1.0.0-beta1
+
+Initial release.