Added tag 0.3 for changeset 78e9432d30bc
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)