Skip specs trying to change the timezone
Skip specs trying to change the timezone

Neither Node.js nor PhantomJS can deal properly TZ changes, thus a 
warning message will be printed instead for attempts to set the TZ
to a value different from the current one.

See @vais comment for details about dealing with TZs:
https://github.com/opal/opal/pull/967#issuecomment-116166482

Thanks to @iliabylich for pointing out the #with_timezone helper.
Mogztter/opal,iliabylich/opal,opal/opal,jgaskins/opal,Mogztter/opal,iliabylich/opal,Mogztter/opal,wied03/opal,jgaskins/opal,wied03/opal,kachick/opal,jgaskins/opal,Mogztter/opal,wied03/opal,kachick/opal,opal/opal,opal/opal,kachick/opal,iliabylich/opal,opal/opal,kachick/opal