add some caching for the elements.
update performance.
make python keyword autocomplete and jump to source consistent.
update performance of the unused import inspection.
update performance of the unused import inspection.
enable it by default.
better handle import file resolution.
fix issue with import change not updated keyword reference
changed variables to python library flow
add detection of variables defined by *** Variables ***
better handle ./ and ../
add variable not found inspection
Merge pull request #52 from mtrubs/master

beginning of variable detection