Remove ephy-object-helpers

Not sure I want to know why this was ever useful.

https://bugzilla.gnome.org/show_bug.cgi?id=734369
Bump WebKitGTK+ requirements to 2.5.2

And use the new WebKitNavigationPolicyDecision API to remove a couple of
FIXMEs.
Updated Greek translation
EphyLocationController: remove unused properties

https://bugzilla.gnome.org/show_bug.cgi?id=666808
Merge EphyWebViewSecurityLevel and EphyLocationLockState

EphyWebViewSecurityLevel has lots of unused members. Once they're
removed, they correspond one-to-one with EphyLocationLockState. Merge
these so we don't have to convert between two identical enums.

https://bugzilla.gnome.org/show_bug.cgi?id=666808
Remove various show_lock properties

EphyTitleBox and EphyLocationEntry now know to show the lock whenever
the security level is not EPHY_SECURITY_LEVEL_NO_SECURITY.

https://bugzilla.gnome.org/show_bug.cgi?id=666808
Display warning icon if mixed content is detected

Since an attacker can modify some contents of these pages, we should
display a warning icon instead of a secure lock, following the convention
of major browsers.

https://bugzilla.gnome.org/show_bug.cgi?id=666808
Display security status in a popover

Instead of bringing up the certificate details dialog when clicking on
the lock icon in the address bar, instead bring up a popover that
displays information about the security status of this site, including a
button to open the certificate dialog.

https://bugzilla.gnome.org/show_bug.cgi?id=666808
Open certificate popover if title box lock clicked

We show two locks in the header bar: the lock in the location entry, and
the lock in the title box. Previously, only the lock in the location
entry was actually functional, but clicking the lock in the title box
ought to work, too, since you should not need to open the location entry
to perform any actions.

Arguably the lock should be removed from the location entry so that this
functionality only exists in one place, but this patch leaves both locks
intact.

https://bugzilla.gnome.org/show_bug.cgi?id=666808
Updated Hebrew translation
Updated Brazilian Portuguese translation
Do not show down arrow in title box in app mode

In application mode, the title box is not clickable, so it's wrong to
show a down arrow next to the web address. (The down arrow is used to
indicate that the user can click on the title box.)

https://bugzilla.gnome.org/show_bug.cgi?id=734732
location-entry: Reset the lock icon when security level is EPHY_SECURITY_LEVEL_NO_SECURITY

We were returning early leaving the existing icon for non HTTPS pages.
We don't need to keep the gicon and resetting it every time a new
security level is set, we can simply use gtk_entry_set_icon_from_icon_name()
with the name we get from ephy_security_level_to_icon_name().
Updated Assamese translation
Updated Greek translation
Use HTTPS for Bing search

https://bugzilla.gnome.org/show_bug.cgi?id=734868
Updated Lithuanian translation