Bug 1011424 - Disable test_call_contact due to Bug 1008974
Bug 1011469 - Intermittent test_cost_control_reset_wifi.TestCostControlReset on v1.4
Merge pull request #19316 from viorelaioia/bug_1011424

Bug 1011424 - Disable test_call_contact due to Bug 1008974
Merge pull request #19324 from AndreiH/bug_1011469

Bug 1011469 - Intermittent test_cost_control_reset_wifi.TestCostControlR...
Bug 874510 - upgrade Mocha to a more recent version r=yurenju

This uses the same Mocha that is specified in package.json