Adds code that protects literal periods in paths passed to FileSystem.git_recurser from being treaded as wildcards.  This makes the previously added test pass.
Adds code that protects literal periods in paths passed to FileSystem.git_recurser from being treaded as wildcards.  This makes the previously added test pass.

fakefs/fakefs,vhl/fakefs,marxarelli/fakefs,deployable/fakefs,defunkt/fakefs,eventualbuddha/fakefs,anthonyryan1/fakefs,bf4/fakefs,1234-/fakefs,onehub/fakefs,pivotal-cf-experimental/fakefs,dekz/fakefs,bquorning/fakefs