Fix for bug with reliable messages.
Merge branch 'master' of https://github.com/highfidelity/hifi into metavoxels

Conflicts:
	interface/interface_en.ts
Updated translations.
Merge branch 'master' of https://github.com/highfidelity/hifi into metavoxels
Merge branch 'master' of https://github.com/highfidelity/hifi into metavoxels
Merge branch 'master' of https://github.com/highfidelity/hifi into metavoxels
Merge branch 'master' of https://github.com/highfidelity/hifi into metavoxels
Working on streaming metadata.
Optional hash/full metadata streaming for QObjects.
Cleaned up the preprocessor definitions.
Working on metadata for metatypes.
More work on version-resilient type streaming.
Missed a spot.
Fixes to, test for metadata streaming.
More metadata fixes.
Merge branch 'master' of https://github.com/highfidelity/hifi into metavoxels
Merge branch 'master' of https://github.com/highfidelity/hifi into metavoxels
Working on collection streaming.
Merge branch 'master' of https://github.com/highfidelity/hifi into metavoxels
Collection streaming (untested).