[sailfish-browser] Add support for web service icons provided by platform

Current one is just one example.
Merge pull request #135 from rainemak/localFaviconSupport

[sailfish-browser] Add support for web service icons provided by platform
[sailfish-browser] Update default bookmark count for tests
Merge pull request #136 from rainemak/fixBookmarkTests

[sailfish-browser] Update default bookmark count for tests
[sailfish-browser] Fix loading of external url to the active tab

When external url is requested so that browser is not running
requested url is loaded once engine is ready to load urls. In this
case requested url is considered as a navigation request so that browser
side tab history gets updated.
Merge pull request #137 from rainemak/externalUrlFix

[sailfish-browser] Fix loading of external url to the active tab
[sailfish-browser] Notify memory pressure

Requires: https://github.com/tmeshkova/qtmozembed/pull/76
Update qtmozembed requires field
Merge pull request #140 from rainemak/memoryPressure

[sailfish-browser] Notify memory pressure
[sailfish-browser] bookmark editing

use enterkey to accept/jump, don't allow empty urls, show url instead of empty title

make landscape scrollable, inputhints for url field
Merge pull request #138 from veskuh/edit-bookmarks

[sailfish-browser] bookmark editing
[sailfish-browser] Enable usage of stored basic auth credentials
[sailfish-browser] Make the dontsave switch in auth dialogs always visible
Merge pull request #142 from rojkov/save-basic-auth

[sailfish-browser] Enable usage of stored basic auth credentials
[sailfish-browser] Open filepicker also for multifile requests
Add debug mode for browser

Browser can be launched with -debugMode argument. When launching
in debug mode an overlay is drawn on top web content.

Currently debug mode only contains content height, content width,
scale, and a button for dumping memory snapshot.

Requires: https://github.com/tmeshkova/embedlite-components/pull/56
Add command line argument for dumping memory info
Coding style improvements
just take compiler flags from libxul-embedding
Add simple memory-dump-reader utility