Merge pull request #4 from joeyAghion/dev

@starsirius: Run librarian:config and librarian:init as part of momentum init
Tweak gem installation instructions.
Annoyingly, the require must be wrapped/rescued to avoid breaking production rake tasks.
Bump momentum version.
require: false
Bump version to 0.0.3
Bump version to 0.0.4
Use released gem version... avoids bundler headaches with github repo.
Add librarian:install task and loudly-failing system helper.
Bump version to 0.0.5
Adds a rake command to read web server log files from a rails app layer instance
Changed --session-command to -c for Ubuntu compatibility
Adds helper for ssh and another helper for alternative to instance[:public_dns]. Adds config for weblogs. Changes logs to default to rails-app layer.
Changed name of webapp_logs_root to logs_root and corrected README accordingly.
Merge pull request #6 from ibussieres/master

Adds a rake command to read web server log files from a rails app layer instance
Revise ow:logs task to accept a specific instance and fully qualified log path.
Merge pull request #7 from joeyAghion/master

@dylanfareed: Revise ow:logs task to accept a specific instance and fully qualified log path
Rake tasks that operate with a remote stack's ENV (via ow:config:from_env) should also be able to connect to the memcached server, if available.

This copies the first available online memcached instance's private IP
into the MEMCACHE_SERVERS environment variable, which is where the
Dalli client looks for it, by default. In case the calling code can't
access the private IP, the public host is copied into
MEMCACHE_SERVERS_PUBLIC.
Bump version to 0.0.7
Merge pull request #8 from joeyAghion/master

@anyone: Copy memcache connection details into ENV