[APIBAAS-1391]Adding cluster configuration for gatling cluster
add alias support
add alias support
merge from two-o
add index naming util
adding comments
check for alias existence
testing multiple index creations
Merge branch 'two-dot-o' into index-alias
Merge branch 'APIBAAS-1391' of github.com:r3b/usergrid-1 into USERGRID-252
add write_alias and read_alias
Updated gatling cluster launcher to tag instances
updated basic geo tests
temp name change to fix caps
fixed file name
Fix incorrect formatting.
add index to alias methods
add another test for index
adding config based interface so nothing is es specific, adding rest routes
Updated NodeRegistry to use only tags instead of external simple db

Upgraded AWS client

Removed unused registry list groovy script