* Changing incorrect license in some source files.
* Changing CreateService to mimic CreateJob by setting the batch size to the instance count.
* Changing Getcerts to GetCerts to match the style of the rest of the codebase.
* Overhauled error handling. Backoff now recognizes temporary errors and continues to retry if it finds one.
* Changed thrift function call wrapper to be more explicitly named and to perform more safety checks.
* Moved Jitter function from realis to retry.
* API code is now more uniform and follows a certain template.
* Lock added whenever a thrift call is made or when a modification is done to the connection. Note that calling ReestablishConn externally may result in some race conditions. We will move to make this function private in the near future.
* Added test for Realis session thread safety. Tested ScheduleStatus monitor. Tested monitor timing out.
* Returning nil whenever there is an error return so that there are no ambiguities.
* Using defer with unlock so that the lock is still released if a panic is invoked.
