Add initial Travis config file
Add initial Travis config file

no issue
- basic testing of the admin client with both Chrome and Firefox

JohnONolan/Ghost-Admin,acburdine/Ghost-Admin,dbalders/Ghost-Admin,kevinansfield/Ghost-Admin,airycanon/Ghost-Admin,TryGhost/Ghost-Admin,acburdine/Ghost-Admin,TryGhost/Ghost-Admin,airycanon/Ghost-Admin,JohnONolan/Ghost-Admin,kevinansfield/Ghost-Admin,dbalders/Ghost-Admin