Merge pull request #3 from ScottAlbertine/master

cross-file linking for keywords and import statements
update artifact
Merge pull request #4 from mtrubs/master

update artifact
fix lexer bug on empty files, test clean up, keyword provider now a singleton
pictures in readme
mention PyCharm in readme
Merge branch 'master' of https://github.com/millennialmedia/intellibot
auto-complete support for keywords belonging to imported files
prioritize auto-complete keywords
add a test
update artifact
update artifact
Merge pull request #5 from mtrubs/master

add a test with a junk file
reorganize the code base.
correct issue with import of non-robot files.
refactor code slightly.
update artifact.
Merge pull request #6 from mtrubs/master

reorganize and fix an issue