Let the search bar expand to the whole width.
Use padding instead of html <br> to pull the icons apart.
Pre-cache icons at app start in sperate thread.

Instead of different threads for each icon, there is now only one extra
thread to load all icon images at once in the background.
This will reduce lags and displaying wrong images when scrolling at 'warp' speed.
shorten app-name
Merge pull request #11 from jfreax/preload_icons

Pre-cache icons at app start in sperate thread.
Merge pull request #10 from jfreax/minor

Minor layout changes
cleanup
inc version for publishing