Updated under contruction page with minimalistic styling.
Added section for sublime specific files in .gitignore
Updated Gruntfile.js to ignore _scss files when running csslint
Merge branch 'style-under-construction' into develop.

This includes styling for the under construction page.
Merge branch 'develop' of https://github.com/pdunc/pdunc.com into develop
Merge branch 'develop' with changes to the under construction page styling.