run lookup for .meteor/packages inside a try catch
fixes iron-router errors while using tinytest

The changes add support for standalone packages that are not contained within a Meteor application.
removes unnecessary whitespace
Merge branch 'support-for-tinytest' of github.com:CodeAdventure/meteor-fast-render into tinytest-support
re-added support to check .meteor/packages
Merge branch 'tinytest-support'