Prefix action to fetch containers IP with ssh so that vagrant does not lock around its execution

Closes GH-321

lib/vagrant-lxc/action.rb

@@ -195,7 +195,7 @@ module Vagrant
 
       # This action is called to read the IP of the container. The IP found
       # is expected to be put into the `:machine_ip` key.
-      def self.action_fetch_ip
+      def self.action_ssh_ip
         Builder.new.tap do |b|
           b.use Builtin::Call, Builtin::ConfigValidate do |env, b2|
             b2.use FetchIpWithLxcAttach if env[:machine].provider.driver.supports_attach?

lib/vagrant-lxc/provider.rb

@@ -68,9 +68,9 @@ module Vagrant
         # we return nil.
         return nil if state.id != :running
 
-        # Run a custom action called "fetch_ip" which does what it says and puts
+        # Run a custom action called "ssh_ip" which does what it says and puts
         # the IP found into the `:machine_ip` key in the environment.
-        env = @machine.action("fetch_ip")
+        env = @machine.action("ssh_ip")
 
         # If we were not able to identify the container's IP, we return nil
         # here and we let Vagrant core deal with it ;)