Use relative paths in CSS to make it easier to override assets
Add loads of documentation
Change header in readme
Better explain what seen_through means
Clarify relationship between interest and subscription
Move rake task namespaces into individual files to make it easier to work with the rake files
Add comments to subscriptions helpers
Various documentation tweaks based on feedback:

- fix docstring for Interest#in
- remove XXX near Interest#create_subscriptions
- add more docs to SeenItem class
- add more descriptive @todo for SeenItem#subscription_id
- remove SeenItem#json_view
- add more descriptive @todo for Subscription#query
- replace docstring with @see for Subscription#search
- made some # internal comments into # @private
Fix English pluralization of zero items
Use Regexp.escape instead of re-implementing it
Make Search a module to make its function clearer
Merge pull request #459 from jpmckinney/zero

Fix English pluralization of zero items
Merge pull request #461 from jpmckinney/module

Make Search a module to make its function clearer
Merge pull request #460 from jpmckinney/regexp

Use Regexp.escape instead of re-implementing it
Correct errors in the description of the Interest class
Update a few option docstrings in the subscriptions manager
Merge pull request #455 from jpmckinney/rakefile

Move rake task namespaces into individual files
fix subscriptions.rake
encompass the chartbeat header line too
subscription_types local variable is unused in Rakefile