Merge pull request #32 from daveho/master

fix issue #11: disable autocommit for bulk student registrations
Merge pull request #33 from daveho/master

lock out other problems when user has an unfinished quiz
Merge pull request #34 from daveho/master

improvements to quiz mode
Merge pull request #35 from daveho/master

bugfix: ensure one instructor doesn't see another instructor's quiz
Merge pull request #37 from daveho/master

fix for issue #36 - dup testcases in edit problem page
Merge pull request #38 from daveho/master

much improved UI for reporting statistics for problem
Merge pull request #39 from daveho/master

view user progress in course, improvements to UserAdminPage
Merge pull request #40 from daveho/master

fixed code to check whether a quiz is being continued
Merge pull request #41 from daveho/master

bugfix: keep CourseSelection object in server-side activity object
Merge pull request #43 from daveho/master

display test case names, fixed handling of section selection
Added a means of running a single-threaded builder, to make
breakpoints easier to set.  Converted yet another file from crlf to lf
line endings.
Merge branch 'master' of github.com:cloudcoderdotorg/CloudCoder
Merge pull request #44 from daveho/master

batch testing, increase problem description size
Builder now captures and displays the actual return value for Java,
Python and Ruby method calls.
Merge branch 'master' of github.com:cloudcoderdotorg/CloudCoder

Conflicts:
	CloudCoderBuilder2/.classpath
	CloudCoderBuilder2/src/org/cloudcoder/builder2/server/Builder2.java