Allows adding of post id through post vars to allow image to be associated with post
Convert empty attachment sizes to empty object intead of array

WP-API issue #299
Updated link to docs
Removed guides directory

Guides directory should not exist in two places now that we’ve merged
it into the wp-api.org site. We want to make sure all the contributions
go to one place.
Updated documentation links in main docs folder

Updated links to point to the wp-api.org site.
Merge branch 'master' of https://github.com/pollyplummer/WP-API into docs-updates

Conflicts:
	docs/guides/getting-started.md
Permissions to upload by post id changed

- Now checks the post type of the post id being passed
- Rename variable to make it clearer we are trying to upload to it (post_parent)
Merge remote-tracking branch 'upstream/master' into media-upload-to-post
Moved routes docs into 1 file
Fixed broken Getting Started guide link
Update taxonomies.md

Spent five minutes confused because the documentation here is out of sync as all of these are now seem to be under the "taxonomies" slug where the documentation implied the singulars were under "taxonomy".
Mitigate possible Flash CSRF vulnerability

See http://miki.it/blog/2014/7/8/abusing-jsonp-with-rosetta-flash/

Props @iandunn for disclosing this issue to the team.
Add 1.1.1 changelog
Rename tests to match class file naming
Merge pull request #300 from maxcutler/issue-299

Convert empty attachment sizes to empty object intead of array
Merge pull request #294 from pkevan/media-upload-to-post

Allow attaching media to posts on creation
Merge pull request #320 from pollyplummer/doc-updates

Updated link to docs
Merge branch 'master' into davidbhayes-patch-1

Conflicts:
	docs/routes/taxonomies.md
Merge pull request #364 from WP-API/davidbhayes-patch-1

Update Taxonomy route docs with correct paths.  Fixes #355.
Correct GET posts filter parameter to be posts_per_page.

- Changed filter parameter to `posts_per_page`
- Added example of filtering GET /posts/
- Intended to fix #357