Don't run the handlebars tests unless handlebars is installed.
Don't run the handlebars tests unless handlebars is installed.

pattern-lab/patternengine-node-mustache,pattern-lab/patternlab-node,pattern-lab/patternlab-node,geoffp/patternlab-node,stevemartin/patternlab-node,geoffp/patternlab-node,stevemartin/patternlab-node,pattern-lab/patternlab-node,pattern-lab/patternlab-node