* Added pyflakes and Pylint for python
* Actually run linter in CI
* some simple pyflakes changes
* Add flake8 to panda reqs for linter test
* flake8 errors are fixed
* run flake8 in regression tests
* meant to run flake8
* hack to ignore unused import
* bug
* fix bugs in tucan_loopback
* Another fix by using set_safety_mode
* added pylintrc file
* more fixes and enabled pylint as well
* Fix pylint in circleci
* added linter to readme
In fd233832ef
the linker flag -lgcc might not work on EON as it does not have the
correct library.
The fix was a workaround in sha.c such that we no longer need to import
function __aeabi_llsr from library, by replacing right shift operation
with const argument.
E.g.,
uint64_t a = b >> i // requires __aeabi_llsr from libgcc
uint64_t a = b >> 2 // does not require external library
Resolves: #522