added framebuffer to canvas
Merge remote-tracking branch 'upstream/develop' into fbo

Conflicts:
	engine/src/main/java/org/terasology/engine/subsystem/lwjgl/LwjglGraphics.java
FBO uses normal texture
fixed on viewport when drawing to texture
bugfix
Flipped the fbo texture
Added Shutdown/restart server admin commands
Implemented 'kick' server command
Tooltips are now UIWidget. This allows them to contain non-textual elements, and to be extended (via wrapping in a Layout and added further elements to that layout). Simple methods for setting and binding strings for tooltips have been retained.

.ui files now support a simplified declaration of UILabels as simple strings. Obviously allows for the tooltip declaration, but can also be used anywhere a label may be desired. See the videoMenuScreen.ui for an example.
Merge pull request #1041 from immortius/develop-tooltips

Tooltip Widgets
Fixed a bug with "Q" dropping whole stack, instead of one item.
Merge pull request #1037 from MarcinSc/develop

Bug fix for throwing item
Tooltip for items now supports multiple-line display driven by event.
Item tooltip skin added and display fixed.
Removed restart command
Added listUser and kick-by-id command
Minor server command issues
Tooltip lines support setting of skin and family in addition to font and color - untested.
Convert collada unit scale into 1-meter units
Merge pull request #1045 from mkienenb/convert-collada-unit-scale

Convert collada unit scale into 1-meter units
Merge pull request #1035 from msteiger/admin_server

Server admin commands