Merge pull request #209 from pathsim/feature/checkpoints

Add checkpoint save/load system

Merge pull request #204 from pathsim/feature/xprt-ir-blocks

Add missing XPRT IR blocks: logic, Atan2, Rescale, Alias, discrete Delay

Merge pull request #201 from pathsim/fix/remove-connection-zero-inputs

remove connection zero inputs

Merge pull request #200 from pathsim/feature/runtime-mutation

Runtime Mutations

Merge pull request #194 from pathsim/feature/ctrl-blocks

ctrl blocks

Merge pull request #192 from pathsim/feature/codegen-support

Add get_params() method to Block base class

Merge pull request #191 from pathsim/improve-docstrings

Improve docstrings for solvers

Add reset for internal events in block

Reset internal events in the block during reset.

Merge pull request #189 from pathsim/docs-cleanup

cleanup docs and docstrings, fix typos, standardize notebook intros and math formatting

Merge pull request #188 from pathsim/fix-parameter-names-and-docs

Fix parameter names and docs