Merge pull request #1 from pprestin/master

Merging Acumen object for model binding instead of pulling from form params.
Fixing various bugs, including with max form value suubmission size
Fixing content type of static css and javascript resources
Fixing bug with disabled textarea
Working on links in place of files as attached content
Fixes to workflow specific links
Remove need to include spring active profiles in command line
Bug fix for NPE
Moving default data directory out of web
Update README.md
Fixes to basic functionality of demonstration version
Merge branch 'master' of https://github.com/piecework/piecework
Update README.md
Adding Demonstration BPMN file
Merge branch 'master' of https://github.com/piecework/piecework
Update README.md
Refactoring to use command pattern and clean up service classes
Merge branch 'master' of https://github.com/piecework/piecework
Adjusting unit tests for refactoring of services
Fixing unit tests