Fancy master password input screen.

[ADDED]     Fancy master password input screen.
[FIXED]     Key size of stored passwords.
[FIXED]     Several UI fixes.
[FIXED]     The counter wasn't correctly added to the cipherKey.
[IMPROVED]  Site style improvements.
[UPDATED]   Site algorithm explanation update.

MasterPassword.xcodeproj/xcshareddata/xcschemes/MasterPassword (Development).xcscheme

@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
+   LastUpgradeVersion = "0430"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"
@@ -39,11 +40,12 @@
       </MacroExpansion>
    </TestAction>
    <LaunchAction
-      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.GDB"
-      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.GDB"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
       launchStyle = "0"
       useCustomWorkingDirectory = "NO"
       buildConfiguration = "Debug"
+      ignoresPersistentStateOnLaunch = "NO"
       debugDocumentVersioning = "YES"
       allowLocationSimulation = "YES">
       <BuildableProductRunnable>
@@ -56,6 +58,11 @@
          </BuildableReference>
       </BuildableProductRunnable>
       <AdditionalOptions>
+         <AdditionalOption
+            key = "NSZombieEnabled"
+            value = "YES"
+            isEnabled = "YES">
+         </AdditionalOption>
       </AdditionalOptions>
    </LaunchAction>
    <ProfileAction