compilerOptions.paths to support relative and absolute paths

TypeScript Version: 2.0.2

Code

{
  "compilerOptions": {
    "paths": {
      "./moment": ["node_modules/moment/moment.d.ts"],
      "/foo/bar/baz": [ "some/other/path/for/compiler"]
    }
  },

Expected behavior:
I expect (need) to be able to redirect the compiler for any module, not just 'non relative' paths. I'm deploying to a runtime environment that requires me to use relative or absolute paths, but I need the compiler to look to different locations when building locally.

Actual behavior:
The compiler seems to ignore any compilerOption.paths setting which starts with / or ./

Start by reproducing the issue with the provided compilerOptions.paths configuration and the relative and absolute module keys. Trace the compiler's path-resolution entry point to determine why those keys are ignored. Done means relative and absolute paths are redirected as described while existing non-relative path behavior remains intact.