Going for 1.2.1

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "rs-opw-kinematics"
-version = "1.1.2-alpha.1"
+version = "1.2.1"
 edition = "2021"
 authors = ["Bourumir Wyngs <bourumir.wyngs@gmail.com>"]
 description = "Inverse and forward kinematics for 6 axis robots with a parallel base and spherical wrist."

README.md

@@ -172,13 +172,13 @@ function that sometimes occurs there:
   let robot = OPWKinematics::new(parameters);
 ```
 
-Since version 1.1.2, parameters and constraints can also be directly extracted from URDF file:
+Since version 1.2.1, parameters and constraints can also be directly extracted from URDF file:
 ```Rust
   let robot = rs_opw_kinematics::urdf::from_urdf_file("/path/to/robot.urdf");
   println!("Reading:\n{}", &parameters.to_yaml());
 ```
 
-There is also more advanced function [rs_opw_kinematics::urdf::from_urdf](https://docs.rs/rs-opw-kinematics/1.1.2-alpha.1/rs_opw_kinematics/urdf/fn.from_urdf.html) 
+There is also more advanced function [rs_opw_kinematics::urdf::from_urdf](https://docs.rs/rs-opw-kinematics/1.2.1/rs_opw_kinematics/urdf/fn.from_urdf.html) 
 that takes URDF string rather than the file, provides error handling and much more control over how the solver
 is constructed from the extracted values.
 

src/lib.rs

@@ -16,7 +16,8 @@ pub mod constraints;
 #[cfg(feature = "allow_filesystem")]
 pub mod urdf;
 #[cfg(feature = "allow_filesystem")]
-mod parameter_error;
+pub mod parameter_error;
+
 #[cfg(feature = "allow_filesystem")]
 mod simplify_joint_name;