PTBatcherGUI can now also queue user defined assistant and
user defined output sequences.
PTBatcherGUI: Added option to generate panorama sequences from
an existing pto template.
Assistant: Added option to select different output options
like projection, FOV or canvas size depending on different
variables (e.g. image count, field of view, lens type).
Allow building with epoxy instead of GLEW for OpenGL pointer
management.
Several improvements to crop tool (outside crop, aspect ratio,
...).
Several bug fixes (e.g. in verdandi/internal blender).