Reformatted code blocks in README.md
Changed TODO list to checklist in README.md
Updated documentation from pre-alpha status.
Added documentation for GitFlow methodology
Fixed bug in todo list
Moved documentation to GitHub Wiki
Fixed link to Wiki in the documentation
Adjusted base URL for body time series functions
Added PHPDoc for getWeight magic method
Added return type PHPDoc to getProfile
Updated license file dates
Enforced parameter type for getActivities
Added PHPDoc for Activity Time Series Gateway
Fixed typo in exception
Added ability to select storage provider
Friend's leaderboard function definition changed on FitBit.  Updated code to reflect this.
Fixed Log User Activity PHPDoc error
Added PHPDoc definitions for calls to the body time series gateway
Fixed URL for body time series data
Added PHPDoc definitions for calls to the food time series gateway
Added PHPDoc definitions for calls to the sleep time series gateway
Merge branch 'release/0.1.1'