add debug to galeraparameters
Refs https://github.com/codership/galera/issues/114 - mem_size should not be touched.
Getting Started typos and general fixes
merge
Reorganization of installation section on Getting Started Guide.
Disable Selinux for mysqld_t domain

Disabling global selinux is overkill. Disabling for mysqld_t domain is
just as effective without disabling all protections of selinux.
Merge pull request #33 from openquery/selinux

Disable Selinux for mysqld_t domain
Merge pull request #31 from openquery/add_debug

add debug to galeraparameters
Fixing typo in SQL command example:

CREATE TABLE ... msg TE**S**T) -> CREATE TABLE ... msg TE**X**T)
Updated to Getting Started Guide.  Cleaned up the configuration and starting cluster pages.  Rewrote all source installation pages.