raco: remove unused result.py

It's unused.
first round of changes for flake8
grappalang: some flake8 fixes and left a TODO for the rest

Signed-off-by: Daniel Halperin <dhalperi@cs.washington.edu>
clangcommon: some flake8 fixes and left a TODO for the rest

Signed-off-by: Daniel Halperin <dhalperi@cs.washington.edu>
clang: some flake8 fixes and left a TODO for the rest

Signed-off-by: Daniel Halperin <dhalperi@cs.washington.edu>
travis.yml, requirements-dev.txt: add flake8

Signed-off-by: Daniel Halperin <dhalperi@cs.washington.edu>
scripts/myrial: use raco.scheme.Scheme, not raco.Scheme

The latter was a shortcut that probably should not have existed.
.travis.yml: make flake8 ignore certain warnings with imports
raco: fix more flake8 issues identified after disabling F-warnings

Signed-off-by: Daniel Halperin <dhalperi@cs.washington.edu>
flake8: move to a nose test

Signed-off-by: Daniel Halperin <dhalperi@cs.washington.edu>
ignore .noseids
remove raco/datalog/test.py, it's broken and unused
myrial/parser: fix bad class name
pylint -E fixes to raco.datalog
pylint -E fixes to raco.language
pylint -E fix for raco/language
Merge remote-tracking branch 'origin/andrew_cfg' into dhalperi-add-flake8-v2

Conflicts:
	raco/algebra.py
	raco/myrial/interpreter.py
	raco/myrial/pagerank_test.py
	raco/myrial/query_tests.py
	raco/myrial/scanner.py
	raco/myrialang.py
Merge branch 'master' into dhalperi-add-flake8-v2

Conflicts:
	raco/clang.py
	raco/clangcommon.py
	raco/grappalang.py
	raco/pipelines.py
Merge pull request #131 from uwescience/bmyerz-grappalang-cleanup

grappalang cleanup
Merge remote-tracking branch 'origin/master' into dhalperi-add-flake8-v2