add: top navigation bar: ability to use raw urls

instead of a view name, use something like /foo
permits to add a Nagvis link for instance
bugfix: /contrib needs a RequestContext
bugfix: order of variables in translation string
Merge pull request #376 from matthieucan/last-bug-in-translations-hooray

bugfix: order of variables in translation string
add: nagvis example in settings.py
fix: active links in topmenu bar, with direct urls
Merge pull request #375 from matthieucan/bugfix-topmenu-conf

add: top navigation bar: ability to use raw urls
base_status typo in send_mail translation code

Quoting was off for gettext
Selective profiling support added via decorators

You can use the @adagios.profiling.profile("filename") decorator on
functions to enable profiling. By default profiling data is saved in
/var/lib/adagios.
Profiling, Attribution of code and copyright
Profiling docs and make dest configurable