Bug 828294 - [Email] Forwarding an email with an attachment will send the email without the attachment
guess timezone defaults based on mcc/mnc
bugfixes + code factorization + create an `apn_tz.json' database
Address review comments
Merge pull request #9915 from mozshiao9/master_bug828294

Bug 828294 - [Email] Forwarding an email with an attachment will send the email without the attachment r=asuth
Bug 862402 - Check the connection status before we reconnect the device
Bug 870739 - Polishing multi-resolution support
  * Progress bars issues resolved
  * Extra space at bottom dialer tab removed
  * Video app scaling issues fixed
  * Missing bluetooth phone/pda icon fixed
  * Network activity icons now scale up correctly
  * Lockscreen unlock icon re-do (it was bigger than normal)
  * Re-ordered responsive.css file to avoid having impact in application first paint
  * style_unstable/scrolling.css now supports different devices ratio
  * Contacts scrolling @2x icons fix
  * Added missed @2x assets
Merge pull request #9680 from basiclines/polish-hidpi-support

Bug 870739 - Polishing multi-resolution support
Bug 876358 - [Call log] 'retryCount' should be 1 for new group calls. r=etienne
Merge pull request #10010 from crh0716/862402

Bug 862402 - Check the connection status before we reconnect the device
Bug 865754 - When a second incoming phone call occurs, do not
automatically turn on the screen
r=timdream
Merge pull request #10015 from etiennesegonzac/bug-865754-call-waiting-screen-off

Bug 865754 - When a second incoming phone call occurs, do not automatically turn on the screen
[Bug 876363] fix separator line styling [r=crdlc]
Merge pull request #10017 from EverythingMe/separator-line

[Bug 876363] fix separator line styling [r=crdlc]
Bug 871437 - change the value of Power save mode threshold to -1 for
never case. r=alive
Merge pull request #9985 from RudyLu/powersave/Bug871437-disabled_dataConnection

Bug 871437 - change the value of Power save mode threshold to -1 for never case. r=alive
Merge pull request #9965 from fabi1cazenave/tzGuess-bug873962

Bug 873962: guess timezone defaults based on MCC/MNC, r=RudyL
Bug 876389 - [email] Bug 828294 broke the linter, a=linter
Merge pull request #10021 from asutherland/fix-email-lint

Bug 876389 - [email] Bug 828294 broke the linter, a=linter
Bug 875393 - Homescreen delete icons is too big on non-hidpi devices . r=ochameau