begin enforcing short methods

* configure check style with a 17-line limit for methods (including opening/closing lines, so the body is limited to 15 lines)
* break up long method in FooterGlobalPathListProcessor
begin enforcing some whitespace rules

* require whitespace around or after certain tokens, and disallow it for others
* add whitespace where necessary in affected java files
only warn on long methods; do not fail
Merge pull request #2 from CruGlobal/style-modifications

Style modifications