CORR: blanks corrected
added exchange_rank to allow tomopy to process exchange1, exchange 2 etc.
added exchange_rank to allow tomopy to process exchange1, exchange 2 etc.
added exchange_rank (int) to direct tomopy to process exchange 1, exchange 2 etc.
added exchange_rank (int) to direct tomopy to process exchange 1, exchange 2 etc.
set exchange_base once and forced exchange_rank to int
Merge pull request #38 from decarlof/master

Added exchange_rank to direct tomopy to the dataset to reconstruct
Use empty list if C_INCLUDE_PATH is not set

Otherwise, C_INCLUDE_PATH will be set to [''] which will result in a `-I -I
tomopyt/algorithms/recon/gridrec` flag that causes gcc not finding the
MessageQueue.h header file.
Explicitly list scikit-image requirements
Merge pull request #47 from ufo-kit/install-fixes

Some installation fixes
Fixed deprecated char* string conversion error message.
Merge pull request #49 from carterbox/master

Fixed deprecated char* string conversion error message.
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 #50 from carterbox/master

Removing unused variables
Merge with develop