adding comments model and migrations
simple share buttons styled and hooked up, comment button commented out for now
Fixes to user import
Makes sure images don't bug out.
profile pic size was funny
Repeated
Merge branch 'develop' of https://github.com/Make-Magazine/makerapp into develop
adding the old link to the old world.
Added site map generator
Added site map.
404 page styling
404 img optimization: 31kb < 115kb
Merge branch 'develop' of https://github.com/Make-Magazine/makerapp into develop

# By Jay Z (2) and Dan P. Gailey (1)
# Via Jay Z
* 'develop' of https://github.com/Make-Magazine/makerapp:
  Added site map.
  Added site map generator
  adding the old link to the old world.
adding sitemap.rb -- I guess this was generated from the gem.
compiling assets
adding url 404 to spaces
adding link to makerspace on 404 page
more styling of 404 page
like button frontend visual state change stuff
fixing notebook user photos