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.
[webcontroller] Add NIWebController::openHTMLString:baseURL:
Merge pull request #296 from scompt/niwebcontroller_loadhtmlstring

[webcontroller] Add NIWebController::openHTMLString:baseURL:
downgraded the interfaces to assign/retain so we can use nimbus as a lib and link it against a GCC LLVM compiled project. This is not the final solution
Created NI_WEAK & NI_STRONG
migrated all code to NI_WEAK & NI_STRONG
Merge pull request #298 from yosit/master

Added support for NI_WEAK & NI_STRONG
Fixed an invalid assert when NIMutableTableViewModel has no rows
[webcontroller] Expose the webView property.
[webcontroller] Use the new NI_STRONG macro for webView.
Merge pull request #300 from galexy/master

Fix for an incorrect assert in NIMutableTableViewModel
[core] Add NIRectExpand.
[core] Add NISizeOfStringWithLabelProperties.
[attributedlabel] Fix CF delegate leak in image run generation.