v0.1.6

New features:

• Option to split output in time into several files #50
• Add log flag to gridcontourf #54
• Add restart.change_grid function #56

Bug fixes:

• Fix restart.resizeZ #53
• Fix handling of yindex_global of FieldPerp in restart.redistribute() #55
• Fix bout-squashoutput executable (add __init__.py to scripts subdirectory) #57
• Write correct "PE_XIND", "PE_YIND" from restart.redistribute() #58