Merge: Merge wmaker and awmaker code

This patch includes the latest changes from wmaker that
makes awmaker FTBFS.
Remove compiler warning

This patch includes the xdnd.h file in the dock.c header list,
to avoid the compiler warning:

dock.c: In function ‘dock_map’:
dock.c:1452:2: warning: implicit declaration of function \
‘wXDNDMakeAwareness’ [-Wimplicit-function-declaration]
  wXDNDMakeAwareness(btn->icon->core->window);
  ^
dock.c:1452:2: warning: nested extern declaration of \
‘wXDNDMakeAwareness’ [-Wnested-externs]
New awmaker README file

This patch includes a new README file and moves the original
Window Maker README file to README.WMAKER.
Merge pull request #1 from thekix/2014081701

Ready to go