Add service to create posts after affirmations
Add compass and normalize
Add susy
Add basic global stylesheet
Add basic color mappings and styles
Add basic header styles
Rename global stylesheet to base
Add basic nav styles
Move avatar styles to separate file
Create `posts/_show` and semantic classnames
Separate affirmation views and add semantic class names
Remove affirmations index route

This is currently not necessary. The goal detail page currently shows
all affirmers.
Add semantic class names to goal content
Create basic content container styles

This commit creates a `mixins` stylesheet. It also loads
`normalize-rails` before the other spreadsheets to decrease custom
styles from being overridden.
Clean up nav styles

This commit also creates a separate mixins file.
Add basic entity container styles
Add Mandrill config

Ooops this is public
Add GoalMailer and EmailGoalAffirmersService

Emails are sent to affirmers and owner of a goal that has met its
critical mass. This is achieved through `GoalMailer` and
`EmailGoalAffirmersService`. After a user affirms a goal, we check to
see if the affirmation count is equal to the critical mass (this
'prevents' us from sending email when the goal is over critical mass).