Added plugin title constant.
Bootstrap CSS now has buttons + alerts.
Testing red install notice.
Admin install notice improvements.

Also upgrade to Flat UI Pro.
Using "hide this" button instead of small "x" close button.
Install notice now showing up on all plugin pages.

Styling and logic incomplete.
Install notice now shows up on correct pages.

Which are any admin page EXCEPT this plugin. Still lots to do...
More install notice display corrections.
Trimmed down install notice CSS.
Removed all admin notice CSS.

Need to do too much CSS specificity. Save for another time.
More logic for install notice.
Merging master to install-notice branch.
Merge pull request #4 from pderksen/install-notice

Admin install notice added.