Updated Uyghur translation

Signed-off-by: Gheyret Kenji <gheyret@gmail.com>
Updated Bulgarian translation
update Simplified Chinese (zh_CN) translation
webview: Use SOUP_TYPE_PROXY_RESOLVER_DEFAULT

... instead of SOUP_TYPE_PROXY_RESOLVER_GNOME, which is deprecated.

As a result, we do not need libsoup-gnome anymore, and the minimum
libsoup version was bumped to 2.41.
build: Bump minimum GLib version to 2.35

g_type_init is not needed anymore.
Prepare 3.7.4
Updated Serbian translation
Updated Portuguese translation and converted to New Spelling (Novo AO)
Updated Norwegian bokmål translation
Updated slovak translation
Post-release version bump
Don't assume that secret_password_clear_sync() returns FALSE on error

The secret_password_clear_sync() function returns whether items were
deleted or not, and returning FALSE does not indicate an error
condition.

Detect the error condition correctly, preventing erroneus error
prompts about not being able to delete stuff from the keyring.

https://bugzilla.gnome.org/show_bug.cgi?id=692276
Better debugging messages for keyring interaction

https://bugzilla.gnome.org/show_bug.cgi?id=692286
Add --no-color option to suppress color output

https://bugzilla.gnome.org/show_bug.cgi?id=692284
Use g_unix_signal_add() instead of custom implementation

Use the standard g_unix_signal_add() code instead of a custom
implementation. This is available in glib 2.30 and later.

https://bugzilla.gnome.org/show_bug.cgi?id=692285
provider: Desensitize and turn off the switches if there is an error

Fixes: https://bugzilla.gnome.org/689645
Updated Spanish translation
Added Friulian translation
Added Friulian translation
Assamese translation updated