new UI based on action bar + OK keyboard search within categories

[vidma]

• [x] back button / hiding stuff
• [x] hidding do not work if clicked from home button (it activates show right?)
• [x] on cursor change the sectionindexer don't get updated? or it doesn't work well?
  • sol: had to disable fastscroll on gridview Before setting new data adapter.
  • TODO: is search updating scroller.. not important...
• [x] search should include part of word or atleast be based on "word_clean" without to?
• [x] once in search, and clicked on icon -> search should be hidden and cleared?
• [x] some issues with closed cursor (scroller)
• [x] hide keyboard after some action ??? eg. x button
• [x] in kbd search x button causes failure
• [x] remove the title bar from categories...
• [x] completely remove the title bar from categories... (it is now hidden)
• [x] TODO: kbd search over all categories