Fix bugs which prevented out-of-box VM provisioning and RPM install.

 - Fix minor bug in puppet manifest which fired error during ElasticSearch
   provisioning;
 - Add ElasticSearch index init for socorro.

Now you can provision VM, build and install Socorro using following simple
steps:

 $ vagrant up
 $ vagrant ssh
 $ cd socorro
 $ make BUILD_TYPE=rpm package
 $ sudo rpm -ivh socorro*rpm

Signed-off-by: Selena Deckelmann <selenamarie@gmail.com>
Merge pull request #2535 from selenamarie/es-install-fixes

Fix bugs which prevented out-of-box VM provisioning and RPM install.