Remove $SAFE level for ERB parsing
Remove $SAFE level for ERB parsing

$SAFE=4 level was removed from ruby 2.1.1. In general, this SAFE level
does not provide enough security.

Signed-off-by: Maria Shaldibina <a39f51a90bfcf8ca23756ef12127e1cf20796cba@pivotallabs.com>

barthy1/bosh,barthy1/bosh,barthy1/bosh,barthy1/bosh