Fixed typo
Move one-line method to .h

	Moved method to .h f line less than 120 characters
	Added _lookAtPosition to RecordingFrame
Remove deprecated getters
Introduced RecordingContext class
Added RecordingContext support to Player/Recorder

	Changed meaning of certain values stored in recordings
Added methods to read/write glm types
New recording file format

	Added header containing:
		- Magic number
		- Version number
		- Data Offset
		- Data Length
		- CRC-32
	Planned space for metadata
	Added context block (domain, models, transform, display name,
attachments)
	Improved glm types packing (SHould take about half the space it
used to))
minor cleanup
Merge branch 'master' of https://github.com/highfidelity/hifi into rec_file_format_tweaks
Add global timestamp to recordings
Write correct Offset ad Length of the data
Compute actual checksum
Fix bug adding first samples twice
Enforce checksums equality
Merge branch 'master' of https://github.com/highfidelity/hifi into rec_file_format_tweaks
Changed how looping occurs in recordings
Added options to use recording context
Fixed URLs not read properly
added MyAvatar.setMotorVelocity() & friends for JS
Merge branch 'master' of https://github.com/highfidelity/hifi into rec_file_format_tweaks