support query more on soql results
adding the promise method for forcetkclient queryMore.
fixing totalSize attribute of soql response.
support of cursor management and cache update for collection fetch
handling cursor close for cache queries
forgot return for promise on line 181.
Merge pull request #3 from akhileshgupta/wmathurin

support query more on soql results
Merge branch 'unstable20' of github.com:wmathurin/SalesforceMobileSDK-Shared into unstable20
Fixed issues with cache search and sosl search introduced by pull request
Merge pull request #83 from wmathurin/unstable20

Support for query more (added by Akhilesh)