Stylistic improvements for threadview and notepaneview
Removed link to Google Form and replaced it with mailto links to nb-team
Cleaning up unused files and methods.
Minor css tweak for replyrequesteds tyles
Updated instructor icon
Updated instructor icon, again
Updated instructor icon in light theme
Updated lock icon
Small CSS edits to accommodate latest nbicon changes.
Merge branch 'master' of https://github.com/nbproject/nbproject

Conflicts:
	templates/web/base.html
Updated contact link in pers2 as well
Stat count in threadview is now readable even when not set to 'active'