Update admin_api.rst

PHP api client
Merge pull request #43 from sl4mmer/patch-1

Update admin_api.rst
Merge branch 'master' of github.com:FZambia/centrifuge
update requirements and install_requires
update WTForms - get rid of field_order helper
update jsonschema
fix cent version
Update admin_api.rst

added "namespace_create" at methods list
Merge pull request #44 from sl4mmer/patch-2

Update admin_api.rst
update bootstrap css and js to 3.2.0
clean up index layout
update changelog
Merge branch 'master' of github.com:FZambia/centrifuge
vagrant support
vagrant support
vagrant support
Update README.md
fixed typo
Merge pull request #49 from thedeadofblackfire/master

Vagrant environment
add server option to forward it to SockJS client