Added some missing license blocks
Added "and contributors" to all copyright notices.
Added $Id$ to files that were still missing it.
Changed "All rights reserved" to GPLv3 on Injector.java.
- Fixed a few warnings
- Unified the formatting of the command prologue
- Put down why it was deprecated in the javadoc of a deprecated method.
- Gave //none a better usage line
- Switchcaseified some elseifs