Merge pull request #17 from OlofFredriksson/master

Missed a } after the merge with master repo..
Merge pull request #22 from OlofFredriksson/master

Fixes for #15 and #3
Given @OlofFredriksson credit
Added requirements file
Added IDEA to gitignore
PEP8 fixes
Added print CSS (fixes #4)
PEP8 fixes
Fixed unused imports
PEP8 fixes
PEP8 fixes
Implemented report summary (fixes #6)