Updated /delta

Switched from less to scss. Still no build script to update the final CSS, though.
Added preliminary support for storing account data on browser's local storage for offline viewing. No public backend currently support this feature.

scripts/builder/frontends/deltaBuilder.py

@@ -10,7 +10,14 @@ class DeltaBuilder(FrontendBuilder):
 		return ['js', 'css']
 
 	def copyStaticResources (self, targetFolder):
-		pass
+		resourcesToCopy = [
+			{'folder': 'properties',	'source': 'manifest.appcache',	'target': 'manifest.appcache'}
+		]
+
+		for resource in resourcesToCopy:
+			src = self.absolutePathForSourceFile(resource['folder'], resource['source'])
+			dst = self.absolutePathForTargetFile(targetFolder, '', resource['target'])
+			shutil.copy2(src, dst)
 
 	def bookmarklet (self):
 		return ""