Give xd-singlenode executable perms
XD-202 added temporary twitter search source
Merge pull request #50 from markfisher/XD-202

XD-202 added temporary twitter search source
XD-201
Fix XD .bat scripts to use wildcard classpath(supported from java 1.6)
XD-201
Fix xd-singlenode scripts
  Made the script to use APP_HOME so that script can be run relatively
  Fixed .bat file by specifying commandline argument directly at the java invocation
Merge branch 'master' of github.com:SpringSource/spring-xd