Added path in url.

Page#dir was returning the wrong dir ('/') for pages in directories.
Look for plugins under the source directory

When generating the site, Jekyll will now look for plugins under the
source directory by default. The plugin location can still be changed in
_config.yml
Bump kramdown, rake, shoulda, cucumber, redcarpet
Add test/unit
Merge remote-tracking branch 'upstream/master' into issue-653
Look for plugins under the source directory by default
Add TomDoc
Dont test kramdown

It should have it's own tests for that
Merge branch 'master' into issue-653
first pass at --drafts flag
fix tests
add drafts.feature
Improve error message for malformed highlight tags
Added the --future switch back to the CLI
Added in --limit-posts
Update history to reflect merge of #768
Merge pusewicz/bump-gems from #744
Updated history to reflect merging of #744.
Updated Kramdown tests to reflect numeral HTML entities.
Aliased jekyll server to jekyll serve