switched to centos; increase mem

switched to centos 6.5

increased mem to 1gig

removed autogen cruft
install nginx; confirm elasticsearch running

install nginx, add config file

removed git river completely

now wait until elastic search has started to install schema.
Merge https://github.com/cfpb/github-wiki-search
fixed vagrant file

added nginx.conf.template required by previous commit

switched yum to try, and apt to except b/c call appears to throw
catchable error in 2.7 (default for ubuntu), but not in 2.6 (default
for redhat/centos)

removed	automatic run of ./provision.py	b/c it can't access template
or settings files. must	 be run manually    after startup.

moved nginx config gen out of except block. generate file to temp
location then copy it using sudo.
renamed example_settings.py
Merge https://github.com/cfpb/github-wiki-search
wiki_page_schema -> schema_page
installation instructions
added search page url
Merge pull request #23 from dgreisen-cfpb/master

vagrant/build fixes (hopefully)