Support node.js under Windows OS

In a case of using this loader in Windows OS, the resource path should have
no Windows-style path separators. It sounds like an absurd, but it is a fact,
that resourcePath with backslashes lead to error "Can't resolve path"
under Windows OS.
So Windows-style separators now will be replaced with normal.

Stable

v0.1.5

update jest version, fix some vulnerabilities