RefactorDW Code

- Added new feature idea
- Added --enableassertions to JUnit test execution in CI build

- Proceeded preparing new feature: media files are now included in models and interfaces.
- added additional unit tests
- various refactrorings
- fixed most unit tests

- prepared new feature: media files are now included in models and interfaces. Goal is
to include media files in refactoring.
- RefactorDW now checks if host OS is compatible before executing any refactorings
- added additional unit tests
- various refactrorings

Fixed error in text

Added limitation notice, that media directory is not being refactored at the time.

Changed version number from 1.0.1 to 1.1

- Added command line interface using commons-cli
- Added capability to use alternative XML configuration file
- Refactored (moved) some core classes
- updated documentation

Added svn ignore pattern for the api directory (javadoc)

Integrated Apachy Ivy as dependency manager

fixed error in text