fix indent
fix disco_info hook
Reject clients using SSL connection. Allow only TLS.

This change is motivated by the article on online security:
http://googleonlinesecurity.blogspot.de/2014/10/this-poodle-bites-exploiting-ssl-30.html
Merge pull request #293 from sstrigler/master

fix for #292 - broken XEP-0157 for mod_muc
Introduce read_concurrency

read_concurrency on read heavy tables
passwd, config and hooks
Merge pull request #198 from lixen/mnesia_efficiency

Introduce read_concurrency
Merge pull request #296 from esl/conf-reload

Configuration reload
Merge pull request #300 from esl/secured_connections

Reject clients using SSL connection. Allow only TLS.
use specific commit from ejabberd_tests
add add_to_cluster command to mongooseimctl (sponsored by Grindr)
add remove_from_cluster command to mongooseimctl (sponsored by Grindr)
fix typos
create subsections for clustering commads in mongooseimctl help
Let add_to_cluster nodetool command crash (if need be)
add  missing add_table_copy to all mnesia modules
print mnesia directory in error message
Add distributed mnesia table for external components
Prohibit registering external services for already bound hosts
Merge branch 'add_node_to_cluster_command' into service_multi_hosts
Move ejabberd_service configuration to overlays