Added capability to plot meshlines
Removed unused variable
Updated users guide for meshline plotting
Added commented-out example of meshline plotting
Added support for setting the color of a meshlines plot overlay
Updated plot documentation for colored meshlines
Merge branch 'develop' into plot_meshlines
Added support for other slice orientations
Switched to pointer for plot mesh
Merge branch 'develop' into plot_meshlines
Added support for plotting ufs, entropy, and cmfd meshes
Allowed read_tallies_xml to run in plotting mode, only to read mesh info
Updates documentation for meshline plotting
Clarified documentation
Tidied up select case
Added intent
Bumped version number to 0.6.1.
Update release notes with latest bug fix.
Add documentation of statepoint revision 12.
Fixed total-yN manual entry - good catch Paul