Added functions to base question to handle common behavior in most (if
not all) question types.

The parser does not yet fully work but shows the basic concept for how
to make SAX work for our XML
Create test.java

testing
Merge pull request #1 from wlfsteven/master

Create test.java
Merge pull request #2 from johnqiang/master

Update MultiChoice.java
fixed calls to parent constructor,
fixed calls to parent constructors, added imgQuestion parameter
Merge branch 'master' of https://github.com/hydrodog/devsit
fixed conflicts, merged MultiChoice
Conflicts:
	Quiz/src/org/adastraeducation/quiz/MultiChoice.java
added images for MultiChoice questions, changed directory for images to
img/
Added second class into hierarchy, FillIn by Longfei
Really added Fillin this time!
And we reorganized class hierarchy
Removed unit test from MultiChoice, they are all in Quiz now.
Changed name of method that writes HTML and XML to writeHTMLContent for
each question
Merge pull request #1 from hydrodog/master

try to merge from dov's repository, if not, ignore it.