Use $(boot2docker shellinit) to init app

@@ -10,6 +10,7 @@
    do script "mkdir -p ~/.boot2docker" in newWindow
    do script "if [ ! -f ~/.boot2docker/boot2docker.iso ]; then cp /usr/local/share/boot2docker/boot2docker.iso ~/.boot2docker/ ; fi" in newWindow
    do script b2d & " init " in newWindow
-   do script b2d & " up && export DOCKER_HOST=tcp://$(/usr/local/bin/boot2docker ip 2>/dev/null):2375" in newWindow
+   do script b2d & " up " in newWindow
+   do script "$(" & b2d & " shellinit)" in newWindow
    do script "docker version" in newWindow
 end tell

Signed-off-by: Ben Firshman <ben@firshman.co.uk>
Bump to version 1.3.0

Signed-off-by: Ben Firshman <ben@firshman.co.uk>