Elimination of the now-empty Invalidate function

This function was once necessary to trigger an object pool flush, but as the object pool concept was removed, there is no longer any need for Invalidate.
Eliminating deprecated ThreadStatusBlock type

This class is not referenced anywhere and its purpose is largely superceded by the CreationRules stack monitoring type.
Deprecation of the Event Stream system

This system is being deprecated as it is ill-maintained, disused, and very out of date.  The concepts represented here must be reimplemented to support AutoPacket, and will almost certainly require the support of a serialization strategy such as Protobuf or CaptProto.

Until the concept can be revisited, this code should be eliminated in order to facilitate header load reduction.
Packet factory is no longer recursive

This is a breaking change, and comes with a bump to the version number.  The bottom line is that AutoFilters are no longer recursive with respect to contexts.  This change was necessary because, unlike events, AutoFilters operating under recursion can violate the confinement principle by attaching decorations.  This could cause a situation where two subcontexts interfere indirectly with each other due to attached decorations.

Rather than trying to provide a backwards-compatible path for this feature, the feature has instead been completely deprecated.  This feature's theory of operation will require closer examination and justification at a later time.
Should be forwarding, not moving, where the input is templated
Merge pull request #289 from leapmotion/dep-invalidate

Elimination of the now-empty Invalidate function
Merge pull request #290 from leapmotion/dep-eventstream

Deprecation of the Event Stream system
Merge pull request #291 from leapmotion/dep-tstatusblock

Eliminating deprecated ThreadStatusBlock type
Merge branch 'develop' into dep-subreceipt

Conflicts:
	src/autowiring/AutoPacketFactory.cpp
Fix merge error.
Merge pull request #292 from leapmotion/dep-subreceipt

Packet factory is no longer recursive
Merge pull request #293 from leapmotion/ref-fwdtemplate

Should be forwarding, not moving, where the input is templated
Merge branch 'develop' into dep-dpcei

Conflicts:
	autowiring/CoreContext.h