This provides initial infrastructure for decoupling display names from internal canonical names, but continues to have us storing and using the canonical forms.
It should be/become possible to provide mixed-case and underscore-containing names in links, @-mention, !-group, etc, but we don't store those alternate forms generally.
File extensions can also be added to the upload type whitelist; they'll be normalized to types for the actual comparison, so only known extensions will work.
Fix extraction of Atom <content type="text"> and <content type="html">; we were failing to escape plaintext source data to HTML, and doing an extraneous double-deescape on HTML source resulting in breakage of notices containing text that looks like HTML. Only <content type="xhtml"> was working correctly previously.
Fixes for RSS2 content processing: we were failing to load <content:encoded> at all due to using wrong element name, and were applying an extraneous de-escape for <description> rather than the escaping that is required to turn plaintext into HTML. (Per spec, <description> must be plaintext.)
Basic splitting/validation code submitted via http://status.net/wiki/XMPP/JID_validation -- Copyright 2009 Patrick Georgi <patrick@georgi-clan.de> Licensed under ISC-L, which is compatible with everything else that keeps the copyright notice intact.
Added PEAR Net_IDNA package to extlib to handle IDN normalization (also used by Validate's email verifier if present).
* added test suite, supplemented my own test cases with JID validation and normalization test cases from libpurple
* follows XMPP rules for validation of name part
* fixes for normalization with non-ASCII names
* will do domain checks if $config['email']['check_domain'] is on, checking for an XMPP-server SRV record or any lookup. (We don't actually need to ping those direct though.)
* some more obscure stringprep validation rules aren't quite followed yet, but we err on the side of permissiveness.
* we still don't actually let you save your address with a resource on it, as we strip resources when looking up users who've sent us presence or message updates. I would recommend saving the outgoing resource as a separate field if/when we add that..?
First steps to parsing RSS items as activities. RSS feeds don't seem
to have enough data to make good remote profiles, but this may work
with some "hints".
