Added ref. to command line tools under Install
Merge pull request #318 from larryhynes/patch-4

Added ref. to command line tools under Install
fixed issue that would post images multiple times
fixed issue with twitterlogger overwriting configuration options
Merge pull request #319 from drallgood/twitter

Fix double posts and overwritten config options
Added WunderlistLogger
Merge pull request #320 from lazyguru/master

Added WunderlistLogger