Updated version number.

FIX: TranslationInterface::busy never became true.
FIX: Couldn't dismiss virtual keyboard by clicking into the dictionary
area when no dictionary items were present.
Don't request translation if source text is empty.
Added About dialog and replaced Close text with the icon.
- Added support for multiline text translation.

- Moved Source and Target language selectors into one line to maximize
  space for displaying translations.
- Added separate field for displaying detected language.
Added automatic translation of current text if no typing for 1.5 secs.
Added some eye candy: appear and disappear animations for items.

Also moved dictionary list delegate into its own separate file because its
code bacame quite large.
A bit of code cleanup...