WAF: as suggested by George, add a bunch of helper waf scripts that call the toplevel waf script, so that it is possible to compile with ./waf from emacs regardless of which buffer you are visiting (the other alternative is to install waf system wide and run 'waf'.

.*.orig$
.*\.o$
.*~$
build-dir
build
.*\.sconsign
doc/html.*
doc/latex.*
.lock-wscript