Added animation to progress bar
refs #546
Added progress transition duration to viewer json
Fixed comma
refs #546
Used transition funcs meant to be used by clutter langs bindings
refs #546
Resigned of separate label classes
Changed setting of labels style
refs #546 #549
Setted style classes for viewer widgets
Updated viewer css
refs #546 #549
Fixed viewer css
refs #546 #549
Added working version of viewer launcher
refs #245
Merge branch 'tile-and-bar' into viewer-json

Conflicts:
	pisak/viewer/viewer.json
Add label to photo tile internal box
Use property transition method that actually works
Made progress bar work
Improved sample photo tile in json
Sorted viewer css elements
refs #245 #546 #549