Article image appears when sharing items via mail, Facebook etc.

Re-added "Copy" to share menu choices.

Change-Id: Iac6307f19a79118ea0f9285fb8ced4abe878424a
Refactor modal views.

Language pickers, credits and page history now use modal
slide-up presentation.

Fix for search box clear button hiding the search box.

Change-Id: I2bc9348484322c850dcea295e59b9d182e6dc81a
Ensure MCC/MNC enrichment for sampling only happens on mdot API.

* bits was being hit first.
* Without this change, MCC/MNC would be sent, but not observed server-side.

Change-Id: I4172eb892daffd0148fcbbc3923c4fe8b54669e1
Merge "Ensure MCC/MNC enrichment for sampling only happens on mdot API."
Sync with MobileApp extension css.

Consolidated DownloadLeadSectionOp.m and DownloadNonLeadSectionsOp.m
into single DownloadSectionsOp.m

Now periodically syncs styles.css, preview.css and abusefilter.css.

Note: not presently using abusefilter.css or abusefilter.html in
anticipation of potentially forthcoming native designs for handling
abuse filter messages.

Added build phase scripts for automating running GruntJS and
retrieving latest styles.css, preview.css and abusefilter.css from
MobileApp extension for builds.

Change-Id: I86c42d62e4a02d4a7f653d6f325f5bc43adeade5
Merge "Refactor modal views."
Merge "Sync with MobileApp extension css."