formating xembed messages with spaces instead of tabs

fixing focus/activation of embedded clients.

code cleanups

code cleaning, windows are properly closed on exit; if last client quits, exit

small typo fix.

reformating source, adding const flags to XEvent-Handlers.

correcting comment

handle configurerequest.

storing windowId in char[] variable.

small variable fixes

sorting functions alphabetic

moving xembed messaged to top.

reformating

embedding works nice now.

resizing works again, windows are getting managed.

small fork related fix.

working on reparenting.

removing unneeded types from union Arg

start implementing xembed.

changing tabbed to embedding like xterm it does.