Added functionality to reorder tasks.
@authors sla jstorrey tjclark

Change-Id: I67828cf7063f6990f036fb7f03720e9b84e0f69e
Add drag-and-drop to Excel

Entire buckets can be dragged and dropped into Excel

I think we could present this as our solution to reports and statistics.

Instad of making our own inflexible, crappy looking  bar graph tab, we
just let users drag into Excel and do their own analysis.  They can take
whatever columns they actually care about, and compute whatever statistics
they actually need. Afterwards, they can format it however they need to
(ex. for a final report or a presentation or something) using familiar
tools.

Using an external program has disadvantages, such as the time it takes
to export over and over again if data changes, but the fact that you can
export using swag and drop makes it easy enough that it probably doesn't
matter.

Change-Id: Ic947869b6252dad992a3b8f29952cbda7986fc50
Fixed two typos in swag-to-Excel

A javadoc had a typo, and a debug println was left in

Change-Id: If97c46a2c46be6317f6a153fec64735c0e87f755
Merge branch 'dev' into feature/swagAndDrop

Conflicts:
	TaskManager/src/main/java/edu/wpi/cs/wpisuitetng/modules/taskmanager/presenter/TaskPresenter.java

Change-Id: I8ed988a02ad0c900bec7dcae43172c87b20a83d3
Merge branch 'feature/swagAndDrop' into dev