Update:
I did two things to try and solve this
1:: Installed anew v0.3 of Julia via homebrew :: This didn't solve the
issue.
2:: Installed nightly build v0.4 : it worked.
3:: Then tried to get LightTable to see v0.4 .. This didn't work. So I
removed the .julia/v0.3 folder rebooted LightTable which installed its own
v0.3 dependencies:: Did Pkg.add("Gtk") from WITHIN LightTable and now it
seems to work..So it is working (for now) though I am still no the wiser as to why..
