fix 7.0.4 release-note
 1. zats test cases
 2. modification to bind/issue/*.zul for zats query
 3. zktest/pom.xml for zats conofig
remove zkless-engine node package from repo and add bin/node_modules to gitignore
add more zats test cases
minor fix and add more test cases
1. change package name of zats test cases 2. fix ant build by update classpath and lib/ext
add checker to check whether zkless-engine is installed in build file
Merge pull request #197 from hanhsu/fix-build-for-lessc

add checker to check whether zkless-engine is installed in build file