1.2.0

• Created method expect and expectError
• Created method unwrapOrThrow
• Made ifOk and ifError return the result for chaining
• Created methods toOptional and toErrorOptional
• Created methods fromOptional and fromErrorOptional
• Created methods all and errors

1.1.0

Added documentation, fixed some bugs, and created a new None type

1.0.0

Initial 1.0.0 Release