Added rotation and scale to overlay anchers
Don't compute avatar anchor specs if uneeded
Merge branch 'master' of https://github.com/highfidelity/hifi into anchers_apply_rotation_and_scale
CMake find LibOVR
Merge pull request #2878 from murillodigital/master

CMake find LibOVR
Fixes filesystem issue between Qt and Windows
Merge pull request #2874 from Atlante45/anchers_apply_rotation_and_scale

Added rotation and scale to overlay anchers
CMake find LibOVR
Merge pull request #2880 from murillodigital/master

CMake find LibOVR
Merge pull request #2879 from Atlante45/win_fix_for_included_scripts

Fixes filesystem issue between Qt and Windows
added isLocked() to lock the ground plane in hq
slight DRY
Merge pull request #2881 from ZappoMan/lockgroundplane

Lock the ground plane model in hq
don't look for GnuTLS from cmake
remove dependency on GnuTLS for later replacement with OpenSSL
remove GnuTLS include across repo
remove more gnutls includes
put back ssize_t definition
Merge pull request #2885 from birarda/remove-gnutls

remove dependency on GnuTLS for later replacement with OpenSSL