Should fix PNS bookmarklet
urldecode() before processing. Also, Tumblr share.

Not sure why, but urldecode() is required on some host (tested on tso.io), otherwise the URL shortened ends up like http://http%3A%2F%2Fblah.cmo%2F
New bookmarklets that beat the ?u=http:// problem

Plus, a Tumblr bookmarklet because everybody and their granny is asking for it.
Merge pull request #1570 from YOURLS/fix-1512

Beat servers that trip up on `?u=http://`. Fix #1512
s/GPL/MIT/

and a few typos / engrish
Deprecated function
Cleaning: deprecated stuff in their own file

Having all deprecated functions in one place will make it easier to check whether some are still in use, see 57f69f08c ...
Merge branch 'master' into http-lib
Deprecated stuff to their file