Version 1.5.1

• just a version bump to help install to PyPi

Version 1.5.0

• added support for int numpy arrays as input to functions and methods
• added support for bitwise and (&), or (|) and not (~) operators on Fieldsets
• added div() function (already available via the '/' operator)
• added mod() function
• improved timeout message by mentioning how to increase the timeout
• fixed error when updating an mv.Request object

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