Restore unintentionally deleted tests

Restores tests that were accidentaly deleted
during the purge of old API specfic tests

Also removes test that deletes a document
revision from conflict resolution as this
is currently not supported
Merge pull request #68 from cloudant/restore_deleted_tests

Restore unintentionally deleted tests
It seems that setting the log level in CloudantTests.m has no
affect and that only LogWarns are being printed, which is
the default log level set in CDTLogging.h

ChangeLogLevel must be called somewhere within an instance
method of a class in order to change the logging level for that
class.

So, in order to use this in a robust way, one would probably have
to wrap a ChangeLogLevel call inside a ifdef preprocessor macro,
or runtime arg/envioronment variable.
Adding logging to replicationAcceptance tests causes an
EXC_BAD_ACCESS error on line
https://github.com/cloudant/CDTDatastore/blob/master/Classes/common/Attachments/CDTDatastore%2BAttachments.m#L94

Run `testPullLotsOfOneRevDocuments`
Fix test logging set up

Remove if statement for logging in CloudantTests.m
Fix warning of implicting cast of NSUinteger to int