Merge pull request #15 from rojkov/cleanup

Make sematics of QMozContext clearer.
History page
Address bar recent and url fill (initial commit)
added History.qml to qrc
Merge pull request #16 from CODeRUS/master

History page
Push back delayed context creation in order to avoid main() execution blocked in half way.
QML changes
+ Added some icons for context menu, added history icon, changed menu icon
* Fixed clipboard in context menu
* Visual changes in address recent list
* Fixed date separator in history
Fixed opening new windows
Icon updates
Missing icons
Fixed getting favicons for sites
fix for recent sites list
Show overlay UI when starting on blank page
Fix for overlay menu buttons after using recent sites
we don't want to show context menu again
Hide recent sites when accepting url
[qmlmozbrowser] Schedule MozContext's runEmbedding explicitly in main
QMozContext::GetInstance() is idempotent function without side effects