Merge branch 'master' into development
declare Walker extended class with correc signature in methods [touch: 166]

fixes strict standards error.
fix undefined offset warning [touch: 165]
allow reording non-published posts [touch: 156]

fixes what was perceived to be a bug but is really intended behaviour.
Merge branch 'DEV-ENH-156-allow-ordering-on-non-publish-posts' into development
modify series count and display so "private" posts work like "published" posts [touch: 154]
fix error for private posts assigned to series on front end [touch: 154]
fix bug where users without manage_series capability being able to add additional series [touch: 97]
updating readme (stripping whitespace)
Merge branch 'development'