Code cleanup and error checking

Code has been cleaned up to remove unnecessary code such as loops around requests when they are not needed.

A new set of error checks have been implemented that will throw errors when things like the status code come back as not 200 or the success field is set to false.

Redis storage and performance boosts

Couple of changes to increase performance

• Redis can now be selected as the session storage driver in the config file.
• A persist connection option is now available in the config to so sessions don't close every time.

If you are upgrading you will need a new version of the config file.

Added connection override and delete operation

Have now added the ability to override the default connection parameters set in the config file.

Have also added the delete operation to records can now be deleted.

INVALID_SESSIONID fixed

Found sometimes Vtiger returned INVALID_SESSIONID which was random and couldn't be replicated.

This has now been fixed and tested and haven't seen the problem since.

Latest

This release now uses Guzzle instead of cURL and has some minor bug fixes

Initial Release

This is the initial release