Feature/118 improving adjust view
Main changes:
- In adjust tab, added roi button and slider for adjusting roi's angle
- In BG subtraction tab, linking views of all images and adding pager
- In raw, adjust, BG tab, 'A' button removed, context menu changed only to have 'View all' and 'Export view' options
Fixes: #118 (closed), #117 (closed), #120 (closed)
This branch is also related to issue #53 (closed), does this merge solve that?
Edited by Martin Laasmaa