Add Asset Path Tag to plugin list in docs

Requested by @mattr-
https://github.com/mojombo/jekyll/issues/881#issuecomment-27276509
Add Jekyll 1.3.0.rc1 Release Post to Gemspec
Merge pull request #1667 from mojombo/release-1.3.0.rc

Prepare for a 1.3.0.rc release
Release 1.3.0.rc
add missing section info to the drafts post, in order to make navigation links (Back, Next) work
Merge pull request #1677 from yizeng/add-section-info-to-drafts

add missing section info to the drafts post
Use the proper date in the gemspec
Update history to reflect merge of #1677
Sort plugins so people can have "load orders".

This allows for people to do something like "_plugins/1-autoload-global.rb" and have it load first and so on making it much easier to organize code and have a "header file" that does all the requiring up front if it's needed for all plugins.
Update implementation of listen for v1.3.x
Merge pull request #1687 from mojombo/fix-listen

Fix implementation of listen for v1.3.x
Update history to reflect merge of #1687
updated end to endfor
Merge pull request #1691 from katydecorah/master

updated end to endfor
Update history to reflect merge of #1691
Prep for the 1.3.0 release
Plugin description updates for Monthly/Category archive generator
Bump version to 1.3.0
Updated docs to match reality, where drafts are dated based on file modification time

See https://github.com/mojombo/jekyll/blob/8e7b6bf5ff56e6bb8d0f1019c19b351f1d600e39/lib/jekyll/draft.rb#L28 -- source uses `File.mtime` on the draft file, not `Time.now` as the doc says.
Minor fixes to v1.3.0 release post.