Changes to the new tweet bar to make it more accurate.

Also, meaning the number cannot go up when scrolling to older tweets.
Have also made the bar show until you get to the top of your new tweets.
Attempt to resolve #110 by not resetting the alarm unless the new time differs from the original.

Resetting could cause duplicate alerts.
It would appear sometimes the status' include more than the last ones.

Since there is one which is new, the original if rules are OK, but the counts are way out.

Added a filtering to ensure all of the statuses are new and then the rest of the logic runs on the filtered list.

This really should fix #110 (i managed to replicate this whist a debugger was running)
Correct typo
Small fix to prevent null reference exception
Update release notes
Merge pull request #119 from BlythMeister/BetaVersion

Bug fixes