- E129 visually indented line with same indent as next logical line
- E226 missing whitespace around arithmetic operator
- E241 multiple spaces after ','
- E262 inline comment should start with '# '
- E301 expected 1 blank line, found 0
- E303 too many blank lines
- E502 the backslash is redundant between bracket
- E741 ambiguous variable name
- W391 blank line at end of file
- installs cutting edge version from current source
- removes outdated java version fixes
- migrates to host Python3
- verifies the image builds and run via Travis
- fixes minor linting: "E117 over-indented"
- run setup.py on both Python2 and Python3
- runs simple test case for both Python2 and Python3
- checks the PEP8 style
- updates README.md adds Travis badge
