Remove lambda spec tests.

The tests only have lambdas for perl/python/js/et.c. so they don't
even make sense for qt-mustache.
Merge branch 'master' of https://github.com/robertknight/qt-mustache into remove-lambda-spec-tests

Conflicts:
	tests/test_mustache.cpp
Merge pull request #11 from estan/remove-lambda-spec-tests

Remove lambda spec tests.