added setChromeTitle for subclassing

setChromeTitle allows individual titles in a subclass
added setChromeTitle for subclassing

override setChromeTitle in a subclass for individual titles
Merge remote-tracking branch 'upstream/master'
Changed Object type --> causes compiler fault
Fixed activeRequest-queue - adding of the identifier key was missing
b2
Fixed issue when setting cache size of thumbnail and high quality image caches.
Fix NI_WEAK.
[attributedlabel] Fix image vertical-alignment (improve commit=620d958)
Merge pull request #309 from francisli/submissions

[css] add support for setting highlightedTextColor on UILabel with Nimbus CSS
[pagingscrollview] Misc bug fixes.

- Moved all subclassing methods out to a separate header "NIPagingScrollView+Subclassing.h"
- The offset is not modified if the user is dragging the paging scroll view while the data is reloaded.
- We now safely handle end-of-animation notifications. No longer using a sketchy timer.
- Added more support for modifying the behavior of the paging scroll view.
[pagingscrollview] Stylistic cleanup of the subclassing header.
[models] Remove redundant object fetch and fix build break for picky compilers.
Merge pull request #308 from inamiy/master

Fix NI_WEAK & NIAttributedLabel image vertical-alignment
[attributedlabel] Don't transform the rect used for the path.

This caused Japanese strings to crop prematurely in certain scenarios.
Updated AFNetworking to latest to overcome the retain cycle issue
[attributedlabel] Add missing synthesis statements.
Merge pull request #310 from yosit/master

Updated AFNetworking to latest to overcome the retain cycle issue
Merge pull request #311 from OTrumpf/master

setChromeTitle in NetworkPhotoExample / solved cache issues
Simulate low memory warning on devices

  * Add + (void)simulateLowMemoryWarning in NIDeviceInfo.
  * Simulate low memory warning when tapping on NIOverviewMemoryPageView