minor bugfixing

TextBold-Shadow parsing, issue #64
Last Note deletion error
Enum schema key for resolution-strategy, issue #64
automatic reposition resolution improved and bugfixed, issue #64
resolution-store now don't scale if resolution not found, issue #64

On THIRD thought, add it again

On second thought, let's disable the aligning.

Fixing Serbian,made t more consistent with elementaryOS translations

Adding Serbian translation

Translations will need to be updated

* Avoid seg fault with invalid photo image

* Fix segmentation fault from unset variables