v0.5.0

• [tslint] Upgrade v5.3.2
• [enable-option] strict-boolean-expressions: allow-null-union, allow-undefined-union
• [enable-option] only-arrow-functions: allow-declarations, allow-named-functions
• [enable-new-option] indent: 2 spaces
• [enable-new-option] quotemark: no-template
• [enable-new-rule] prefer-object-spread
• [enable-new-rule] encoding
• [enable-new-rule] prefer-conditional-expression
• [tslint-eslint-rules] Upgrade v4.1.0
• [enable-new-rule] ter-func-call-spacing