Rename storage -> offline-web-application-storage to -cache

CHANGELOG.asciidoc

@@ -97,6 +97,7 @@ Changed
   - `storage -> object-cache-capacities` (default depends on disk space)
   - `content -> css-regions` (now always turned off)
   - `storage -> offline-storage-database` (merged into `storage -> local-storage`)
+- (QtWebKit) storage -> offline-web-application-storage` got renamed to `...-cache`
 
 
 Fixed

qutebrowser/browser/webkit/webkitsettings.py

@@ -228,7 +228,7 @@ def shutdown():
         #   Attribute(QWebSettings.TiledBackingStoreEnabled),
     },
     'storage': {
-        'offline-web-application-storage':
+        'offline-web-application-cache':
             Attribute(QWebSettings.OfflineWebApplicationCacheEnabled),
         'local-storage':
             Attribute(QWebSettings.LocalStorageEnabled,

qutebrowser/config/config.py

@@ -390,6 +390,8 @@ class ConfigManager(QObject):
         ('colors', 'statusbar.bg.warning'): 'messages.bg.warning',
         ('colors', 'statusbar.fg.prompt'): 'prompts.fg',
         ('colors', 'statusbar.bg.prompt'): 'prompts.bg',
+        ('storage', 'offline-web-application-storage'):
+            'offline-web-application-cache',
     }
     DELETED_OPTIONS = [
         ('colors', 'tab.separator'),

qutebrowser/config/configdata.py

@@ -767,7 +767,7 @@ def data(readonly=False):
              "For more information about the feature, please refer to: "
              "http://webkit.org/blog/427/webkit-page-cache-i-the-basics/"),
 
-            ('offline-web-application-storage',
+            ('offline-web-application-cache',
              SettingValue(typ.Bool(), 'true',
                           backends=[usertypes.Backend.QtWebKit]),
              "Whether support for the HTML 5 web application cache feature is "