Adding default_modules to apache to match the recipe defaults
Adding perl, php5, and python modules
Add ssl to default_modules
Update description
check for script instead of shell
Created a QueueGroup that manages per-tenant queues of different
types, such as per tenant solver queues, per tenant task queues,
etc.  Also did some cleanup around unused code that would timeout
elements in queues. It is no longer scalable to use a thread for
each queue for cleanup purposes.
small cleanup removing warnings.
use of the zookeeper namespace conf setting was accidentally
taken out during refactoring. Putting it back in.
Merge pull request #248 from continuuity/hotfix/shell-wrapper-script-detection

check for script instead of shell
Merge pull request #260 from continuuity/feature/zk-namespace-should-be-used

use of the zookeeper namespace conf setting was accidentally
Merge pull request #238 from continuuity/feature/apache-modules-perl-php-python

Feature/apache modules perl php python
concurrent zk queue test can take a really long time on really
slow machines.  Increasing the timeout and making it sleep for
less time.
Sync krb5_utils cookbook with continuuity/krb5_utils_cookbook
Merge pull request #261 from continuuity/feature/long-zk-queue-test

concurrent zk queue test can take a really long time on really
Import build-essential version 2.0.4
Merge pull request #263 from continuuity/feature/update-build-essential

Import build-essential version 2.0.4
Merge pull request #262 from continuuity/feature/krb5_utils

Sync krb5_utils cookbook with continuuity/krb5_utils_cookbook
Sync with latest version of continuuity/hadoop_wrapper_cookbook for Hive security
Merge pull request #264 from continuuity/feature/update-hadoop-wrapper

Sync with latest version of continuuity/hadoop_wrapper_cookbook for Hive security
fix json