freedom-pgp-e2e build updates: newest uproxy-lib, grunt-typescript->grunt-ts

[agallant]

This should also result in a newer version of Typescript being used for builds, allowing for merging external module names. microsoft/TypeScript#52

[agallant]

Pushed a few commits that should address this. See:
freedomjs/freedom-pgp-e2e@392188b
freedomjs/freedom-pgp-e2e@89c6f96
freedomjs/freedom-pgp-e2e@dcdf599

Went fairly smoothly, with one note/TODO - Rule.typescriptSrc in uproxy-lib/tools/common-grunt-rules does not work for karma for running tests. Basically all you need to do for karma is also build the spec file at the same time, so for now I'm doing that manually as there is no appropriate build rule I saw (the jasmine rule and the specDecl rules do not work).

Since we want to move uproxy towards karma anyway at some point soon we should either add this rule or possibly even change the existing rules. For expediency though I just pushed it as is for now.