New app loading mechanism

[merlinND]

Update app for compatibility with https://github.com/AnyFetch/salesFetch-Apex/pull/3

[coveralls]

Coverage remained the same when pulling c8daac9 on skeleton into 58e960d on new-app.

[coveralls]

Coverage remained the same when pulling 80e5478 on skeleton into 58e960d on new-app.

[coveralls]

Coverage remained the same when pulling 23993a2 on skeleton into 58e960d on new-app.

[coveralls]

Coverage decreased (-0.33%) when pulling 5551a04 on skeleton into 58e960d on new-app.

[coveralls]

Coverage decreased (-0.33%) when pulling 2e5eded on skeleton into b4432f1 on new-app.

[coveralls]

Coverage decreased (-0.8%) when pulling 17d779d on skeleton into b4432f1 on new-app.