Added notifications.js

Creates overlay notifications from events and key strokes. improved
fading.
adding the light map support from FBX
Merge branch 'master' of https://github.com/highfidelity/hifi into tot
Update edit entities moveUp arrow position
Clean up code

Fix indentations, whitespace, and layout
First version of the lighmap working
Fix persist time

Set persist time to 10 secs
Merge branch 'master' of https://github.com/highfidelity/hifi into tot
Clean up code

Fix code to standards
adding the shader files for the lightmap case
Merge pull request #3850 from Adrianl3d/master

Added notifications.js
adjust lighmap shading equation
clean out comments so the 2 rendering modes for entities work, scene batch or per model batch
remove spatial audio menu items
add a emissive parameter value to the lightmap shaders
Fixed syntax issues and review critics, put all the debugging code in a #define block
More typos in glsl
Merge pull request #3859 from samcake/tot

support texture transform and lightmap
more correct entity list maintenance
add lifetime to gun bullets