Release 0.12.1

[jch]

• Whitespace formatting cleanup {Whitespace formatting cleanup #236}[https://github.com/Whitespace formatting cleanup #236]
• Set operation result if LDAP server is not accessible {Set operation result if LDAP server is not accessible #232}[https://github.com/Set operation result if LDAP server is not accessible #232]

cc @dg-ratiodata

[ghost]

Thanks.