R0c

* restore ironpython support

`r0c.py` = sfx built with 13ab73552d17d78f650dd8ecf176d35a7082264e (use this)
`r0c-1.py` = old sfx from this tag just in case

funfact: the tar.gz and zip releases still contain 69 files

* getline even on clients without vt100
* teach the powershell client about buggy windows releases
* slightly better performance on python 2.6 (☞ﾟ∀ﾟ)☞
* use colors on windows when possible
* include the clients in the sfx (+2 kB)

funfact: the tar.gz and zip releases contain 69 files

sfx built from 07b438526c0066033fbcc479a0fed491ce7e5db1

* fix messages being truncated when client window is resized
* fix pagedown in Win10 LTSC WSL1 terminals
* support non-alphanumeric nicknames
* verify newline keycode when suggesting a client config
* kick clients which are idle in the wizard for 10min+
* powershell client more interactive