Fixed a vi-like "find next" command (f{X})

E.g. typing "fp" selects next artist / directory that starts with [pP]
Added a fallback alternative to seekcur
Fixed a regex related bug
Fixed some search bugs
Missed to include file
Added a help state
Added a vi-like bar to TextComponent
Cleanup and pep8
Fixed a silly bug
Help/TextComponent fixes
Fixed TextComponent's bar texts