Multiscale Clean

[samaloney]

Working multiscale clean
Doc updates
Test updates

[pep8speaks]

Hello @samaloney! Thanks for submitting the PR.

• In the file setup.py, following are the PEP8 issues :

Line 18:1: E402 module level import not at top of file
Line 20:1: E402 module level import not at top of file
Line 21:1: E402 module level import not at top of file
Line 34:101: E501 line too long (107 > 100 characters)
Line 140:1: E124 closing bracket does not match visual indentation

• In the file xrayvision/clean.py, following are the PEP8 issues :

Line 166:101: E501 line too long (141 > 100 characters)
Line 170:101: E501 line too long (166 > 100 characters)
Line 304:101: E501 line too long (141 > 100 characters)
Line 381:101: E501 line too long (141 > 100 characters)

• In the file xrayvision/tests/test_clean.py, following are the PEP8 issues :

Line 130:1: W391 blank line at end of file

• In the file xrayvision/tests/test_transform.py, following are the PEP8 issues :

Line 280:5: E265 block comment should start with '# '
Line 281:13: E231 missing whitespace after ','
Line 295:24: E231 missing whitespace after ','
Line 295:31: E231 missing whitespace after ','
Line 316:34: E231 missing whitespace after ','