CP-899 Move System null-check to a useful location

[maxwellpeterson-wf]

Issue

Fixes #93

Changes

Source:

• Move null check of System above first usage
• minor style fixes

Tests:

• No change

  Areas of Regression

• None

  Testing

• Ensure karma-jspm still works with another Workiva repository

@trentgrover-wf @evanweible-wf @dustinlessard-wf FYI @jayudey-wf

[dustinlessard-wf]

+1

[evanweible-wf]

+1

[maxwellpeterson-wf]

@jayudey-wf ready for merge

[jayudey-wf]

QA Resource Approval: +10

• [x] Testing instruction
• [x] Dev +1's
• [x] Dev/QA +10 with detail of what was tested
  • installed into a project that consumes karma-jspm, ran gulp dist and gulp test and both completed as expected
• [ ] Unit test created/updated
• [x] All unit tests pass

Merging into master.

[jayudey-wf]

@rosie run_merge_script