Changed dumb cc detection

cc is now auto detected from phone number
added optional cc field in config
cc in config overrides cc detection
Updated message for help-config
Implemented Contacts Sync V2 API

Added sync method to yowsup-cli
Now WARequest keeps response object
WARequest now checks for reponse status before parsing
Bumped v for yowsup and yowsup-cli
Added method for setting contacts
Fixed compatibility with python 2.6, closes #50
Merge branch 'upstream'