TABDEV-1127: Make placeFromURL operate like contentFromURL, where we allow a filtered places request.
TABDEV-1034: Created JiveMobileAnalyticsHeader class and tests.
Merge branch 'TABDEV-1034' into develop
TABDEV-1034: Change visibility of JiveMobileAnalyticsHader.h
TABDEV-1034: Fix for ios-sdk-tests.
TABDEV-1034: Added mobileAnalyticsHeaderForJiveInstance method to JiveAuthorizationDelegate.
TABDEV-1034: Fix typo in init method.
TABDEV-1034: Modify sdkTests to expect mobileAnalyticsHeaderForJiveInstance method.
Fixed the build.

NSData+JiveBase64 is private API, which is why the header isn't public. I copied another base64 implementation for sdk tests.
Fixed jive-ios-sdk-tests dependencies.

Moving the jive-ios-sdk project reference in the previous commit removed all its targets from jive-ios-sdk-tests' target dependencies.
TABDEV-1104: Add JiveSummary attributes struct.