Various improvements

Removed all notices and added a new beta version notice; removed
placeholder for report name input; improved help text for the
anyone-okay-phrase input; added a help block for the data input; added
or modified a few comments
Added support for any number of wants per person

Updated data processing and grouping algorithms to add support for any
number of wants per person
Improved layout; fixed some issues in groups.js

Improved the layout of index.html by giving the Submit button a bottom
margin, removing the space above the report name in the results area
after groups have been made, and making the report name bold (rather
than the number of groups created ("__ groups created")) and unbolding
the number of groups created message; made changes in group.js and
formatting.css to accommodate these changes; fixed some formatting
issues in console.log statements made by group.js
Added check to see if data to group is present

Added a check to see if the grouping data input box is empty; if so, an
error message will be shown when the Submit button is pressed
Revert "Added check to see if data to group is present"

This reverts commit fd52acc599f42d412502a57b0545421f3aae3b71.
Merge pull request #26 from evan10s/v0.2-beta

V0.2 beta