Quickfix usage operation

implemented "populateXMLTextChunk" method for quickfixUsage Operation
and change the input of the quixkfix usage operation to a string
Related to issue karlitrotsky/CodingSpectator#4
Programmed by @maitegm and @joffreyc85
Listener  QuickfixUsage(CompletionListener)

Listener that hears the usage of any quickfix
Related to issue #4
Programmed by @joffreyc85
Colaborate: @maitegm
Merge branch 'quickfix' of https://github.com/karlitrotski/CodingSpectator into quickfix

Conflicts:

	plug-ins/common/edu.illinois.codingtracker.operations/META-INF/MANIFEST.MF

	plug-ins/common/edu.illinois.codingtracker.recording/src/edu/illinois/codingtracker/listeners/CompletionListener.java
Merge branch 'quickfix' of https://github.com/karlitrotski/CodingSpectator into quickfix

Conflicts:

	plug-ins/common/edu.illinois.codingtracker.recording/src/edu/illinois/codingtracker/listeners/CompletionListener.java