embed external html charts in widgets

Tokens generation for non-english widgets and dashboards

Fix typo in readme

Fix the uuid variable to push event via redis.

Prefix path_prefix to namespace link in top bar

Server options

Conflicts:
	README.md

Conflicts:
	Gemfile

Conflicts:
	Gemfile.lock
	VERSION
	fnordmetric.gemspec

Before InboundStream#next_event method, which is not thread safe, was delegated to thread pool. However, InboundStream#push_next_event would delegate the execution back to reactor. In the end all redis blocking calls (we use rb-redis there) would be called from reactor.

Fixed problem with event gauges beeing displayed always one event behind...

Updated README: include Google Groups + formatted

The README is pretty ugly if you're viewing it in a terminal. All I did was
alter it so that (for the most part) the lines do not exceed 80 characters.
Looks a lot nicer. Easier to read when editing and what not.

Since it's removed in the Gemfile, it should not be here either.

Added the link to the Google Groups at the bottom of the README in the
contribute section.

I also took some time to clean up the links that we have in the README.

Section about the API in README

Worker not utilizing multiple namespaces

Realized that all of the namespaces tests (or most anyways) should really be
passing before this get's crossed off the list. At least the ones related
to announcing events to the correct namespace.