MAJOR CHANGE: Re-org code to include seperate beta and store apps. TweetLanes code is now in TweetLanesCore module.
Increase size of compose and always show the remaining count.

Also remove the clear button.
I've left the images in place since they may be used elsewhere.

Should close off issues #98 & #93 :)
When leaving tweet box, make remaining show the correct count if there is a content.
Bumping version, updating release notes, removing files, using constants in AppSettings.
DM support for notifications. Fixes #85
Changes to image cache to clear the cache on reload of app based on items only staying in the cache for 4 days.

addition of images to an SD card cache, (the cache was there, but nothing ever got added to it)
and removal from that hardware cache.
Slight hack, passing the fileCache through to the inmemory cache get so we can delete from the file cache if we delete from the in memory cache.
Correct tweet count post sending
Fix some issues with string comparisons for issue #85
Null ref check, force HTTPS on twitter calls. Issue #73
Merge pull request #102 from BlythMeister/ImageCache

Changes to image cache
Merge pull request #104 from BlythMeister/Compose

Correct tweet count post sending
Updating release notes.
Merge branch 'develop' of https://github.com/chrislacy/TweetLanes into develop
Further improvement to the lazy image loader to make the file cache a little more intelligent.
Merge pull request #105 from BlythMeister/ImageCache

Further improvement to the lazy image loader
New beta logos from @retareq
Merge branch 'develop' of https://github.com/chrislacy/TweetLanes into develop
Change image cache to only ever have 1 days worth of images in any cache.
Fix the cache clear so as to actually clear the correct cache.