Removed org limitation from internals help doc.

Can now access org repos through prose.io interface without manual url entry.
Merge pull request #235 from myplanetdigital/gh-pages

Can now access org repos through prose.io interface without manual url entry.
Merge pull request #231 from DieBruder/prose-patch

Updated _posts/help/2012-06-20-prose-for-writers.md
Updated _layouts/help.html
Updated _layouts/help.html
Merge pull request #242 from superdeluxesam/prose-patch

Updated _layouts/help.html
Merge pull request #242 from superdeluxesam/prose-patch

Updated _layouts/help.html
Fix jekyll compilation, broken in bb3d12a84989e4cc55b72c91db1338267ffb8fc7
Fix jekyll compilation, broken in bb3d12a84989e4cc55b72c91db1338267ffb8fc7
Merge pull request #243 from cucumber/fix-jekyll-compilation

Fix jekyll compilation
Merge pull request #243 from cucumber/fix-jekyll-compilation

Fix jekyll compilation
Updated _posts/help/2012-06-20-getting-started.md
Updated _posts/help/2012-06-20-getting-started.md
Merge pull request #249 from basil3whitehouse/prose-patch

Updated _posts/help/2012-06-20-getting-started.md
Merge pull request #249 from basil3whitehouse/prose-patch

Updated _posts/help/2012-06-20-getting-started.md
Allow three consecutive hyphens in body, fixes #245.

Parsing the YAML front matter from a post body broke if the post itself contained three consequtive hyphens (e.g., a heading).

Make the regex less greedy to look for the first set of closing hyphens (rather than the last set).
Use content specific (rather than code specific) language to describe interactions, fixes #266.

Specifically, instead of "commit message" use "describe your change" and instead of "submit patch" use "submit changes"
Slightly more intuitive saving UI, tries to fix #240.

On save, move focus to the commit message dialog, to encouage users to enter message.

In order to make this process more fluid, the default commit message was moved to `placeholder`, and is swapped in for `val()` on save if none is present.

May make sense to have someone with more design/UI sense take a pass, perhaps the commit box border changes on focus, the commit button changes color, etc. to stand out?
change remaining strings within post.js from save patch to submit change
Detect YAML front matter on any file, regardless of if it is .md or within `_posts`.

This allows proper metadata detection of YAML front matter on jekyll pages, as well as non-markdown files such as having YAML front matter on an HTML template.

Adds function _hasMetadata to utils, and uses the same YAML frontmater regex to detect'