Changed SST method to xtrabackup, tuned innodb_buffer_pool_size, cleaned up template
fixed rounding
Added wsrep_slave_threads and other innodb tunings
tuned gcache and max connections according to size of VM
tweaked memory value for gcache
fixed typo
removed duplicate entries
Added optimization
removed requires
deleted requires
deleted watch
Merge pull request #2 from elextro/master

Added tunings and moved code into relevant files