* MANUAL.md: correct shebangs
* docs/{USERGUIDE,MANUAL}.md: mention amode +v joining through +i
* MANUAL.md: add a FAQ on special privileges of AMODEs
* USERGUIDE.md: add missing channel name
* MANUAL.md: mention that special privileges are cumulative
* Revert "MANUAL.md: correct shebangs"
This reverts commit 75a77c55370089f2b144abc4104db5e13dcc2cb7.
* MANUAL.md: restore syntax highlighting for python3