MustacheViewResolver allows a customized Mustache.Compiler to be injected so the client can have full control over it. For backwards compatibility, the setter is optional.
Updated README.md with more instructions about the Compiler.
Moved mock of Template out of thenReturn in MustacheViewResolverTest.
Merge pull request #14 from paulespinosa/master

Allow client to inject own Mustache.Compiler