ADD documentation

Added a bit of documentation about how to setup app and what I
understand of its design.

This should be completed / updated when digging into code to avoid
others wasting time.
UPDATE rails and gems

 # A pacific app

All resources' destroy routes has previsouly been disabled in
`config/routes.rb`, to "prevent the review without session problem from
happening again" ([see
commit](https://github.com/agile-france/propile/commit/b9606659a425b4ba09bb25a339ee4c44a8abc1e9).

This sounds like a panic fix and a radical measure : it is not possible
anymore to delete anything from webinterface. This will have to be fixed
in a reasonable way at some point, providing we understand what the
original problem was (there is absolutely no documentation about that,
the only information we can have is from issue
[#62](https://github.com/rwestgeest/propile/issues/62) with ... "no
description given").

Anyway, tests for destroy actions were still there. While it was not a
problem with previous versions of rails and rspec, controller spec now
checks if a given action is bound to a route before trying to execute
it. This caused all `#destroy` specs to failed, except the one for
ArchivedPresentersController, which has been marked as `broken: true`
(and thus, not executed).

Marked all others as broken as well. To be fixed the sooner possible.

 # Config page

`#form_for` on `PropileConfigs#index` were passed a nil  model, counting
on `:url` options to set proper path. This is not possible anymore, pass
a mock PropileConfig model to fix it.

 # Gem changed

World :

* bcrypt-ruby (3.1.2)
* bcrypt-ruby (3.1.2-x86-mingw32)
* capybara (2.1.0)
* execjs (2.0.2)
* factory_girl (4.3.0)
* factory_girl_rails (4.3.0)
* guard (2.2.3)
* guard-rspec (4.0.4)
* haml (4.0.4)
* haml-rails (0.4)
* jquery-rails (3.0.4)
* pg (0.17.0-x86-mingw32)
* rails (3.2.15)
* rake (10.1.0)
* recaptcha (0.3.5)
* rspec (2.14.1)
* rspec-rails (2.14.0)
* sass (3.2.12)
* sass-rails (3.2.6)
* shoulda-matchers (2.4.0)
* therubyracer (0.12.0)
* uglifier (2.3.1)
* vlad (2.6.2)

Dependencies :

* actionmailer (3.2.15)
* actionpack (3.2.15)
* activemodel (3.2.15)
* activerecord (3.2.15)
* activeresource (3.2.15)
* activesupport (3.2.15)
* afm (0.2.0)
* builder (3.0.4)
* celluloid (0.15.2)
* coderay (1.1.0)
* coffee-script-source (1.6.3)
* diff-lcs (1.2.5)
* ffi (1.9.3)
* ffi (1.9.3-x86-mingw32)
* hashery (2.1.1)
* hike (1.2.3)
* i18n (0.6.5)
* journey (1.0.4)
* json (1.8.1)
* libv8 (3.16.14.3)
* listen (2.2.0)
* mail (2.5.4)
* method_source (0.8.2)
* mime-types (1.25)
* mini_portile (0.5.2)
* multi_json (1.8.2)
* nokogiri (1.6.0)
* nokogiri (1.6.0-x86-mingw32)
* pdf-reader (1.3.3)
* pry (0.9.12.3)
* pry (0.9.12.3-x86-mingw32)
* rack (1.4.5)
* rack-ssl (1.3.3)
* rack-test (0.6.2)
* railties (3.2.15)
* rake-remote_task (2.2.1)
* rb-inotify (0.9.2)
* rdoc (3.12.2)
* ref (1.0.5)
* rspec-core (2.14.7)
* rspec-expectations (2.14.4)
* rspec-mocks (2.14.4)
* slop (3.4.6)
* sprockets (2.2.2)
* thor (0.18.1)
* tilt (1.4.1)
* timers (1.1.0)
* treetop (1.4.15)
* tzinfo (0.3.38)
* xpath (2.0.0)

 # Details

* UPDATE rails and gems
* REFACTOR replace factory_girl old #after_create syntax
* REFACTOR marks all destroy actions as broken
* REFACTOR config page

Close #7
Merge pull request #11 from oelmekki/documentation

ADD documentation
Merge pull request #10 from oelmekki/update_rails

UPDATE rails and gems
Set ruby version matching rbenv

add dotenv and review database.yml for pg

Add missing test env variables
Merge pull request #14 from yaf/master

Set ruby version matching rbenv
change logo and email -- dboissier
ADD mailcatcher

[Mailcatcher](https://github.com/sj26/mailcatcher) is a smtp proxy that
catch any outbound mail and presents it in a web interface, ensuring no
email goes outside our dev box.

This will make it easier to debug mail related features, which are
currently about sending mails to real people or not sending mails at
all.

Project owner recommands not to include it in Gemfile, so it has to be
installed locally by developpers :

    gem install mailcatcher

Then, to be able to see mails running :

    mailcatcher

this will create a server on port 1080 (specified in command output).

It is ok not to install mailcatcher or running it as it won't hurt
application runtime - you just won't be able to see mails.

Accordingly, code that enables / disables mail sending has been removed,
since getting mails content is just about running mailcatcher.

Close #12

Details :

* ADD mailcatcher configuration
* ADD doc about mailcatcher in readme
* REMOVE dev mail sending toggler
Merge branch 'master' of https://github.com/agile-france/propile
[Conf] add env var PROPILE_PROD_DB_HOST
ADD integration test layer

A lot of errors happen while running the app in browser and are simply
not catched in tests.

That's because only unit testing is performed, giving a false sense of
security.

We need to add an integration test layer as well to be sure features
actually work.

As this has not been done from start and writing a complete test suite
would take too long, let just add new integration tests for bugs we
resolve and features we add.

Needed for #13
Merge pull request #16 from oelmekki/mailcatcher

ADD mailcatcher
Merge pull request #17 from oelmekki/integration_tests

ADD integration test layer