More report styling. Quite presentable now.
Added footer to HTML report and some more styling.
Added StringFormatHelper to take care of formatting Strings shown in reports
Created 2 more feature examples in FakeTestReport
Added outputDir to external configuration. Made code more robust. Added config tests.
Merge branch 'master' of https://github.com/renatoathaydes/spock-reports
Renamed README to README.md to use MarkDown syntax