file isExecutable
Create new conversation when activating users in the new contact list
I also had to remove an unnecessary g_date_time_unref in the demo protocol
plugin for testing.
Testing Done:
Using the demo protocol plugin, I opened a conversation to `Echo` and sent a message. I then went to the buddy list window and double clicked on `Echo` again. I saw history got loaded, which I'll be removing in the near future, but I was able to send messages correctly.
Reviewed at https://reviews.imfreedom.org/r/2201/