Add makefile to enforce no trailing whitespace
Oh, the irony.
Fix typo in Makefile
Add flake8 for style test requirements
Remove trailing whitespace
Add testing coverage library requirement for future use
Ignore the pybitmessage submodule for style testing now, until we move it out of our repo
Proper exclusion pattern for pybitmessage
Merge from master and keep no trailing whitespace
Add tests for use of deprecated "has_key"
Remove all deprecated "has_key" occurences
Merge pull request #260 from dionyziz/enforce_no_has_key

Test for use of deprecated "has_key".
Enforce spacing after , and : operators in build
Style fixes: Space after , and : operators
pep8 fixes in arithmetic.py
Fix syntax error due to styling fixes in node/orders.py
Add checks for syntax errors
Merge pull request #261 from dionyziz/enforce_operator_spacing

Style: Tests to enforce spacing after , and :