2.5

2.5

Filewindow: restored some usability issues :)
(Andrea: Hope you're OK, I needed to test stuff, and
file open was a pain!)

- F1: shows last saved/opened file now
- Enter key loads, ESC cancels
- Hilites on mousemove now show same theme colors as before
- Enabled intended roundbox draw (was added to UI api)
- Tweaked roundbox hilites to nicely surround text
- Text was drawing too close to collumn dividers
- Brought back missing glDisable(GL_BLEND), messed with draw
- On file-open, mouse position is used to show active file