cli cmds may set method for emptyline trigger with mem as first example
added win8.0 wow64 nt symbols
Merge pull request #7 from piggum/win8syms

(c/o:piggum) added win8.0 wow64 nt symbols
merged deltas from a downstream hg repo
abstract listdir and readfile vtrace to prep for 'wiretrace'
Merge branch 'master' of https://github.com/vivisect/vivisect into wiretrace