Remove versions from paths to systemjs and s6-module-loader

[maxwellpeterson-wf]

Fixes #10. Should be released as a new breaking change (either 1.1.0 or 2.0.0).

Problem

jspm no longer puts a version string in the filenames for system.js and es6-module-loader.js after version 0.8.0

Solution

Update the file paths to these files.

Testing

Use karma-jspm in a project that is using jspm@0.8.0-beta.4

@trentgrover-wf

[maxwellpeterson-wf]

@trentgrover-wf Fixed, ready for review

[maxwellpeterson-wf]

@trentgrover-wf fixed so that this is not a breaking change AND it doesn't throw unnecessary warnings.

[trentgrover-wf]

+10

• tests pass
• tested against both old and new stye paths for systemJS loader files and both work as expected

@charliekump-wf QA+1 and merge please

[charliekump-wf]

QA Resource Approval: +1

• [x] Testing instruction
• [x] Dev/QA review +1's
• [x] Dev/QA +10 with detail of what was tested
• [x] Unit test created/updated
• [x] All unit tests pass

Merging into master.