Move application target from src/ to src/tomahawk/
Adjust cmake to build again and fix include errors

These are partly hacks - I split the commit for referencing the hacks
afterwards
Build all subdirs of src/ automatically
Move src/breakdpad/CrashReporter to src/crashreporter
Use QKeySequence::Find to focus the search widget
Merge remote-tracking branch 'origin/master' into hatchet