Merge pull request #403 from hal3/master

 	integrated new version of search, updated relevant tests (and removed ones that use beam, since beam is still not supported)
misindex bugfix from Sarah
add helper targets and variables
use `gunzip -c` instead of `zcat` which only supports .Z and not .gz on Mac OS X
update autogen dependencies
http://ml.nec-labs.com/download/data/mnist8m is dead, use infimnist instead
netcat is sometimes called nc
update autogen dependencies
update for VS2013 build
various type fixes
revise windows directions
Merge pull request #404 from sam-s/master

improve Mac OS X support: zcat cannot hangle *.gz
make them work on Mac OSX, by using "gunzip -c" instead of zcat
fixing ksvm type issues
fixing some more type issues
Merge pull request #407 from alekh/ksvm

Ksvm
Merge pull request #405 from Jaimyoung/master

Make them work on Mac OSX, by using "gunzip -c" instead of zcat
Merge branch 'master' of git://github.com/JohnLangford/vowpal_wabbit
pulled john's changes