added reference to pagination feature
Fixed modifyRelationship() issue

Compatibly issue with old _makeCall() method which couldn't handle POST requests.
Version 1.7

Adjusted docs
Optimized docs
added limit to getTagMedia method
Merge pull request #9 from xpallicer/master

Add limit/count to getTagMedia().
Merge branch 'master' of github.com:cosenary/Instagram-PHP-API
Added missing PHP doc and made limit optional for the getTagMedia() method.
Added link to scope details.
Fixed broken link to pagination feature on the dev branch.
Merge latest version of the master into dev the branch.

Preparing for upcoming version 2.0, with pagination support.
Solved conflicts:
  - README.markdown
  - instagram.class.php
Added missing deleteLikedMedia() method.

Got lost during merging dev with master branch.