Merge the small "virtual keyboard" section into the general Math Suite overview.
Merge branch 'master' into gh-pages
regenerate paper
Merge branch 'gh-pages' of github.com:fred-wang/MathUI2014 into gh-pages

Conflicts:
	paper/output/MathUI2014-MozillaMathML.pdf
	paper/output/S1.SS1.html
	paper/output/S1.SS2.html
	paper/output/S1.SS3.html
	paper/output/S1.SS4.html
	paper/output/S1.SS5.html
	paper/output/S1.html
	paper/output/S2.SS1.html
	paper/output/S2.SS2.html
	paper/output/S2.SS3.html
	paper/output/S2.SS4.html
	paper/output/S2.SS5.html
	paper/output/S2.html
	paper/output/Sx1.html
	paper/output/Sx2.html
	paper/output/bib.html
	paper/output/index.html