Update license headers to 2011 and add some missing ones
tree5aceffe4fabc79fd634c11c2b8d13a3f9916b940
-rw-r--r-- 11 .gitignore
-rw-r--r-- 18011 COPYING
-rw-r--r-- 373 Makefile
-rw-r--r-- 4233 PORTING
-rw-r--r-- 7848 README
drwxr-xr-x - common
drwxr-xr-x - stage1
drwxr-xr-x - stage2
drwxr-xr-x - toolchain
drwxr-xr-x - tools