Merge pull request #99 from acarabott/master

fix shuffle example
Fixed PHP warning
Fix bug calling end on non variable
Fixed an issue with newline character retrieval
Notice cleanup
Fixed a fatal error when deleting Media that was attached to a post, cleaned up warnings
Merge pull request #104 from bukka/bug_expression_ref_pass

Fix bug: passing non variable to end function
a few extra methods
Update installation.md

"Usage" link was in separate file
Update installation.md

Fixed 2 broken internal links
Merge pull request #122 from Ore4444/patch-1

Update installation.md — Thank you sir!
added rewind() method

so you can loop through the attachments once again...
Preliminary fix for TinyMCE updates in WordPress 3.9 — still need to thoroughly test on older versions
Merge pull request #123 from joostdekeijzer/master

added rewind() method
Merge pull request #119 from kokareff/patch-1

Update installation.md
Merge pull request #118 from builtbylane/patch-1

Documenting a few extra methods
Check to make sure TinyMCE is defined. Fixes #114.
Fixed an issue where the nonce was possibly prematurely flagged as sent. Fixes #109.
Prevent instance note content from bleeding into other areas. Fixes #108. Props @gRoberts12.
Support setting post_parent, fixes #107