Before commands in manual.rst and related files started with $ sign.
While this shows, that commands should be executed in shell it also
makes them hard to copy-paste.
This change removes $ and splits commands, that include ';' into
multiple lines. After this change user would be able to copy-paste whole
blocks of code into shell and execute them right away.
Removes `#` that meant that root privileges are required for the
command and adds sudo, where relevant (yum/apt, etc.).
Fixes occasional indentation inconsistencies.
Change-Id: Ib649ae2a3a110bdf09b0bf9c5fbf54a5ce40ccc6
1a753bf200
