Handle webcam support a bit better, show an error when no webcam is found, and not show the webcam snapshot button if the installation has no webcam support.
Added French, Spanish and Polish languages from the community.
Add missing , to last patch
Fix typo.
Merge branch 'SteamEngine' of github.com:daid/Cura into SteamEngine
fix filename when saving gcode

In the proposed filename, the last character was always missing.
Replace some similar string slicing/rfind with splitting.
Fix the rotation angle display rounding bug which made 90degree rotation show up as 89 in some cases.
Possibly fix the language selection problem where english defaults to system default. And add a system default language setting.
Add clipper as used component (while it is used in the engine, it is good to list it)
Language fixes from the lang_nl_corr1 branch.
Merge pull request #581 from martinxyz/SteamEngine

fix filename when saving gcode
Add missing .lower() to filename extensions.
Add some more missing strings to the translations.
Add default machine profiles for other machines then Ultimakers.
Some minor drawing cleanup (I know I know. Still unused.)
Fix #501
Some small changes suggested by ErikDeBruijn
Disable all languages except english for an official release.
Update build_app.py to use proper versions, maybe this fixes the random Mac bugs when multiple Cura versions are installed. Always show the plugins, even if no plugins are found.
Only enable the default firmware menu item when we have a default firmware for the machine configuration.