Merge pull request #179 from mikeh/master

Build fixes. Compiler warnings.
Processes with Listing context bug fix
Merge branch 'master' of https://github.com/Alfresco/alfresco-ios-sdk
Merge pull request #180 from tmughal/master

Processes with listingcontext bug fix
Added script to run unit tests via ios-sim when building on Bamboo agent.