take out unused instance variables
fix spacing
add (commented out) skeleton for create solution feature
Merge branch 'master' of https://github.com/cicadas-2014/percolator into create_solution_feature
add event listener for percolate/add solution button
add button to problem show page
integrate solution create event listener into percolator.js file
Merge pull request #34 from gitnasty/master

Add button and event listener for solution create