Merge pull request #37 from panmarco83/master

Revert "Merge pull request #33 from panmarco83/initial_compile_fix"

add openal-soft and openssl submodules from theire own repos

removed old openal-soft and openssl git submodules that also has missing repos

add opus from oficial git

remove old opus submodule

Merge pull request #33 from panmarco83/initial_compile_fix

Janus was being compiled BEFORE the libraries were configured and compiled for use when compiling Janus itself

Merge pull request #32 from panmarco83/clearchat_bug

Merge pull request #30 from panmarco83/fix_lib_build_issues_part_2

Merge pull request #29 from panmarco83/partymode_cleanup

Move #clearchat command into social window class to reenable it.

make difference in packages installed on 18.04 and 20.04

Problem on ubuntu 18.04 if assimp4 and dev are installed on system

forgotten versioning number reversions