Added tag 0.4 for changeset 5354ba0081c5
Adding the missing arg.h for ARG* macros.
Adding myself to the contributors list.
Introduce ARG* macros to simplify arg handling.
Enable easier tabbed handling with the xid.
Add '--' and concatenated parameter support.
Allow no automatic spawning of the command.
display cmd info on tabbed-win
new default colour scheme
fix focus handling (thanks roman)
remove unused variable (thanks christoph)
spawn on startup (thanks christoph)
added generic client support (thanks Stephen)
Added tag 0.3 for changeset 78e9432d30bc