Try to fix doc compilation / packages

Author: tony

tmuxp/__init__.py

@@ -18,7 +18,7 @@
 from .window import Window
 from .pane import Pane
 from .workspacebuilder import WorkspaceBuilder
-from . import config, util, cli, _vendor
+from . import config, util, cli
 
 import logging
 

tmuxp/_vendor/__init__.py

@@ -0,0 +1 @@
+from . import colorama

tmuxp/cli.py

@@ -22,7 +22,7 @@
 
 
 import re
-VERSIONFILE = "tmuxp/__init__.py"
+VERSIONFILE = os.path.join(os.path.abspath(os.path.dirname(__file__)), '__init__.py')
 verstrline = open(VERSIONFILE, "rt").read()
 VSRE = r"^__version__ = ['\"]([^'\"]*)['\"]"
 mo = re.search(VSRE, verstrline, re.M)