Bug 972695 - [dsds] support Sim Manager in Settings on dsds phone
Bug 972695 - [dsds] support Sim Manager in Settings on dsds phones
Bug 921971 - [DSDS][FDN] Manage FDN list for both SIMs

This fix makes it possible to have independent Fixed Dialing Numbers for each
SIM card in the phone. A new function `getIccByIndex` has been introduced in
`utils.js` that selects the currently selected ICC object without the user
having to specify the particular index, although it allows that too (used in
`sim_dialog.js`, for example.

Instances of `IccHelper` have been replaced by the result of calls to
`getIccByIndex`.
Bug 970818 - [Downloads Manager] Any message appears when the SD card is full
Bug 980281 - Remove some redundant import_script calls from gaiatest
Bug 980361 - The keyboard does not close after pressing a disabled button
Bug 967223 - Handle hangs/crashes better in gaia unit runner, r=ahal
Bug 980184 - Fix jshint errors in FxA system app code r=ferjm
Bug 980608 - Disable autocorrect in fxa-test-client r=ferjm
Merge pull request #16968 from jonallengriffin/unit_timeout

Bug 967223 - Handle hangs/crashes better in gaia unit runner, r=ahal
Bug 975760 - [DSDS] the default SIM for Data is not remembered between reboots
Bug 980653 - Layout issues in email recipient action menu r=asuth
Merge pull request #16973 from KevinGrandon/bug_980653_email_dialog_header_line_height

Bug 980653 - Layout issues in email recipient action menu
Merge pull request #16162 from echangmoz/master

DS support in Settings -> data & cell; Settings -> SIM manager
Bug 980775 - [Resource] rename incorrect 1.5.png to 1.5x.png
Merge pull request #16785 from EragonJ/bug-975760

Bug 975760 - [DSDS] the default SIM for Data is not remembered between r...
Merge pull request #16906 from crdlc/bug-970818

Bug 970818 - [Downloads Manager] Any message appears when the SD card is...
Bug 955945 - Implement age verification screens for FxA Signup. r=alive
Merge pull request #16970 from 6a68/bug-980608-fxa-test-client-autocorrect

Bug 980608 - Disable autocorrect in fxa-test-client r=ferjm
Bug 978011 - Unload properly Image Loader when syncing/importing