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Adding support for configurable web analytics.

This adds the javascript boilerplate for google and piwik web
analytics to the primary layout file. Configuration parameters
for the analytics are stored in a newly added configuration file.

Fixes #113.
Merge pull request #385 from ultrasaurus/devel-home-loggedin

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Correcting a few translation phrases missed when we switched to camel case.
Merge pull request #386 from DavidEBest/devel-webanalytics

Adding support for configurable web analytics.
Fixing the infinite 'Loading' Admin Users view bug.

The Admin Users panel was broken when we switched to more than just
public/closed states. This commit treats everything not open as
closed, which fixes the bug. We may want (as a seperate issue)
to differentiate between the close states.

Fixes #388
Merge pull request #389 from DavidEBest/devel-adminfix

Fixing the infinite 'Loading' Admin Users view bug.
Merge pull request #387 from DavidEBest/devel-moretranslations

Correcting a few translation phrases missed when we switched to camel case.
URI Encoding the mailto links for 'sharing'

Adding a call to encodeURI to encode the urls used to generate
the mailto links, and the mailto links themselves. If this is
not done, then the urls can be corrupted if they contain any
reserved characters. This was seen in 18F/midas-open-opportunities#37,
which contained the identifier '20%'.
Merge pull request #398 from DavidEBest/devel-uriencode

URI Encoding the mailto links for 'sharing'
increment to version 0.0.22