#19261 - Add startup time to the main window title, fit to screen
small code formating fix
Latest work on ViewFrustum
- added support for specifying lens attributes (fov, near, far, ratio)
- changed constructor and calculate methods to be separate
- coding standard cleanup
Tweaks to Camera class
- added lens attributes
- coding standard cleanup
latest View Frustum work
Merge branch 'master' of https://github.com/worklist/hifi into view_frustum_work

Conflicts:
	interface/src/Camera.cpp
	interface/src/Camera.h
	interface/src/main.cpp
a little hackery when in view frustum mode so we can see the frustum without OpenGL clipping us
cleaning up of whacky currentCamera experiment
Removed unneeded variables in main.cpp for pitch,yaw.  Renamed routines to make it more clear where gyros are being read.  Re-enabled marker box being driven by head gyros.
Merge branch 'master' of https://github.com/worklist/hifi
Improved SerialInterface:  Added gravity vector get function, closer to coding standards, better rendering of levels.
temp fix to setPitch() problem. Removed some debug printfs. Fixed menu flicker bug.
tidies changeset
renames AngleUtils -> AngleUtil for consistency with the rest of the files
Merge pull request #49 from ZappoMan/view_frustum_work

Latest view frustum work
Merge pull request #47 from PhilipRosedale/master

Cleanup and partial re-enabling of head gyros
Merge pull request #50 from tschw/19188

19188
use safe version of `sprintf`
Merge pull request #48 from stojce/19261

Code Review for Job #19261
Merge remote-tracking branch 'upstream/master'