hide_offline_users option

This will hide users with offline status, show_only_users still
takes precendence if enabled.

API methods now consist of simple accessors and mutators that are logically
grouped.

Fix old roster.js missing route parameter on connect

This reverts commit d33faa53.

Conflicts:
	src/build-no-jquery.js

New build that does not include jQuery

Also update release notes. updates #267

Fix num_unread*2 on minimized chat

This is useful when you already have jQuery loaded in your page, for
example on a Wordpress site.

Fix locale set during initialize not being used in utils.translation

When chat was minimized the counter num_unread of unread message was increment when receiving a compose message so the number of unread messages was doubled.

[UNTESTED] Remove unnecessary commas for ie8 compatibility

The new changes made to strophe.roster.js are incompatible with the way
converse.js works.

Will likely replace strophe.roster.js completely.

Instead, just populate the roster from sessionStorage if available.

Seems like the RID gets incremented once too many (outside of upper bound of
expected window), and then server responds with item-not-found.

See: http://xmpp.org/extensions/xep-0124.html