ctools 1.5.1 release

Overview

ctools 1.5.1 is a bug fix release for ctools release 1.5.

The following bugs were fixed:

• [2420] - Fix MANPATH for Mac OS X systems
• [2341] - Take energy dispersion in :ref:`csresspec` modelling into account

The following improvements were made:

• [2307] - Enable using :ref:`csphagen` for HESS, VERITAS and MAGIC observations