Merge branch 'develop' of github.com:vtsuperdarn/davitpy into feature-coordConv-altitude
Added datetime to mapObj calls.
Merge branch 'bugfix-plotFan-time' into develop
remove redundant datetime import at top of file and rely on 'import datetime as dt' in plotFan() for all calls to the module
Added comment about 32-bit system.
Merge branch 'develop' of github.com:vtsuperdarn/davitpy into feature-coordConv-altitude
Merge branch 'develop' of github.com:vtsuperdarn/davitpy into feature-plotUtils-mlt
Merge branch 'feature-coordConv-altitude' into feature-plotUtils-mlt