Merge pull request #58 from nlanget/dev-reloc

Move furthermost events to the cluster centroid for better DD relocation
Move test routines into same directory as main code
Removed test ipython notebook
Added documentation
Started modifying documentation
Merge pull request #59 from nlanget/dev-reloc

Added a file for magnitude computation
Fixed spacing on documentation
Added otime window to example
Fixed key error on gaussglob
Made default glob extensions more consistent with examples
Added plot_otime_window option to examples
Added recursive kurtosis using Cassande-Mottin (2002)
Merge remote branch 'upstream/master' into dev-reloc