Cant's start a conversation with a user in a room unless you are part of that room.

Description:

Cant's start a conversation with a user in a room unless you are part of that room. If you view the members list before entering a room (clicking the blue join button) there is not button to start a conversation with that user.

Steps to reproduce:

1. Got to rooms directory
2. Choose a channel you are not currently a member of and DON'T click the blue join button.
3. View members list and attempt to start a conversation with a member of that room. You will not see the conversation button.

Expected behavior:

Should be able to start a conversation with a user by clicking the conversation button.

Actual behavior:

Conversation button does not appear in user details panel, can't start a conversation.

Server Setup Information:

Version of Rocket.Chat Server: 1.0.3
Operating System: Centos 7
Deployment Method: manual tar install
Number of Running Instances: 3
DB Replicaset Oplog: yes

Start in the rooms directory, then inspect the members list and user details panel flow described in the reproduction steps. Reproduce the issue without joining a room and trace where the conversation button is conditionally rendered; done means the button appears and starts a conversation with a room member.