Merge pull request #205 from kliment/master

Layer info display merge
Update gviz.py
Update pronterface.py
Added search functionality to gcode editor.

Merge branch 'experimental' of https://github.com/jezmy/Printrun into experimental

Conflicts:
	gviz.py
Add up, down, plus and - buttons to gviz
Made pronterface extremely compact to help it fit a tiny netbook screen
Issue 174 - Correct layer-count when z is lifted for travel moves
Merge pull request #212 from jezmy/experimental

Closes #174 - Correct layer-count when z is lifted for travel moves
Correct issue of plater background being dark for whole window
Correct background colouring
Update stlview.py   Double-click on window attempted to load a potentially non-existant stl file. Now prints the location and window name.
Merge pull request #213 from jezmy/experimental

Use system default for the background color of plater/compose function.
Make pronterface window even more compact
Add ability to repeat last movement command with the spacebar
Temp graph works again.
Ignore "wait" messages from spammy firmwares and show timestamps with received messages (courtesy of juri_)
Merge branch 'spacebar' of https://github.com/canadaduane/Printrun into experimental
Initialize default arc values to 0. Closes #200
Make control panel more compact with long translation texts such as Italian
Adds support for running an executable when print is finished.
Make control panel more compact with long translation texts such as Italian