CORR: blanks corrected
CORR: focuse_region can now be applied multiple slices at once
update docs added mlem
added ring_removal
Generalized Titarenko's stripe removal algorithm
removed unused variables from functions according to compiler output
erased an unused line
Replaced  with  because the compiler has no way of knowing if during runtime  has any  in it.  takes any of these format specifiers and places them in the output stream without trying to resolve them.
Removed unused variable.
Fixed PEP 8 coding style violations (all but E501)

`pep8 --ignore=E501 --exclude=conf.py,tomopy/algo* */*/*/*.py` returns
no output any :smiley:

TODO: Fix E501 errors.
TODO: Fix stuff in `algorithms` subfolder

As part of http://24pullrequests.com/
Merge pull request #51 from habi/make_pep8_happy

Fixed PEP 8 coding style violations (all but E501)
Merge pull request #43 from decarlof/develop

update docs added mlem
Merge pull request #50 from carterbox/master

Removing unused variables
Merge with develop
#30: Relaxed the skimage version to 0.9

Skimage is needed for TIFF read/write operations. I relaxed the version to 0.9 instead of completely removing it.
stripe_removal2 docs
stripe_removal2 interal functions are now private
Merge pull request #53 from decarlof/master

stripe_removal2
Merge remote-tracking branch 'upstream/master'