Fix a dealloc delay in comment composer

[Deliver #44747227]
Small leak on entity objects

[#44830257]
Adding workaround for mapkit leak

Was wasting a few kb per composer show

[Deliver #44830297]
Add notification for comment creation

[Deliver #44313357]
Point to updated ghunit
Fix an itest issue
Point to updated ghunit
Services call both delegate and block callbacks

[Deliver #44849303]
Send notification on like

[#44052957]
Add notifications for all api object changes

[#44313357]
Document new notifications

[Deliver #44313357]
Handle some nil cases in new callbacks
Fix an itest format string
Fix a crash

Could occur if Socialize response arrives after instance has gone away

[Deliver #45550875]
Bump some timeouts on tests

failing when run in certain ways
Fix an itest

Twitter page changed
Point to updated ghunit
Add doc suggestion

[Deliver #45427949]
Version, changelog 2.7