setup LDAP on travis
extract attr from list (if necessary)
fix mod_shared_roster_ldap to work with OpenLDAP correctly
divide travis build into real build and test scripts
do not close mod_bosh_socket immediately if there are pending stanzas

go to 'closing' state and wait for next request form client
Merge pull request #284 from esl/adjust-bosh-suite-to-escalus-2.6

fix race condition while closing mod_bosh_socket
always return singleton value of LDAP attribute
Merge pull request #285 from esl/ldap-on-travis

LDAP on travis
Use newest tests (without dedicated tag)
use exml 2.1.5
use updated tests
fix indent
fix disco_info hook
close ldap connections when pool it is stopped
add stop function to some core modules
allow to register/unregister virtualhosts
add reload function to gen_mod
reload config command
add stop function to auth modules
fix config change function