Add 1125 charging system writeup.

This is an updated/slightly reformatted copy of what was in the
projects.baf.cc repo.
Begin adding basic project support, including PDF writeup generation.
Remove some spurious spaces in 1125 charging system writeup.
Run PDF contents through typogrify (after markdown).
Clean up blog-archive.jade.
Add project tag to stator related blog posts.
Flesh out project page system a bit more.
Move project write-up links higher on summary page.
Reorganize - move photos to subfolder.
Add BAFIRC project page.
Make content-subhead and page titles more consistent throughout.
Add project link on blog posts.
Add basic project listing page.
Add basic project page for website.
Tweak sorting on project listing page.
Hide hidden projects.
Add basic SantaHack project page.
Add hidden/dormant bikeac project page (linked to from blog).
Fix a missing URL reference on the website overhaul blog post.
Add brief blog post on project pages.