update cluster doc about office document preview
fixed typo
make cluster nodes more clear
avoid ambiguity
Merge pull request #27 from haiwen/cluster-office-preview

update cluster doc about office document preview
update the build guide to the latest changes under OS X
java 7 or higher is required
Merge pull request #29 from Chilledheart/develop

update the build guide to the latest changes under OS X
add document on how to make sure the default java is java 7
Merge pull request #30 from haiwen/default-java

add document on how to make sure the default java is java 7
improve cluster document
Merge pull request #31 from haiwen/cluster-doc

improve cluster document
Improve Ceph MariaDB deployment doc.
Merge pull request #32 from haiwen/mariadb-ceph

Improve Ceph MariaDB deployment doc.
Update changelog.md

Included the latest features, removed death link
Merge pull request #33 from 1resu/patch-1

Update changelog.md
Update deploy_with_apache.md
Merge pull request #1 from haiwen/master

2014-12-03