v0.3.0-beta

• Added: Recursive deep search to code-sign all binaries, frameworks, and dynamic libraries.
• Added: Removal of .cstemp files before code-signing app bundle.
• Added: Only use valid identity from security.
• Changed: .plist default entitlement files to .entitlements following Apple doc: Enabling App Sandbox.
• Removed: helper-path, helper-executable-path, helper-eh-path, helper-eh-executable-path, helper-np-path and helper-np-executable-path.