Some fixes and... idk this is pre-pre-pre-pre-alpha version, I'm not …

…serious at all

Fix some warnings and cleanup

Save

Fix `Lexer::lexMisc`

- Bug fixes

- Add specific-type overloading's for getters (`at`/`get`)

Add `fromJon` and `toJon` overloadings for serialization and deserial…

…ization

Cleanup `jon`

- Stabilized constructors

- Some common bug fixes

Fix warnings

Cleanup jon