Add w3c test suite and external modules
Merge branch 'master' into w3c_tests
Merge pull request #41 from 28msec/master

Merge master
Remove fixed test case
Merge branch 'master' into w3c_tests
Remove entropy in travis script
Disable couchbase module
Add apt-get update
Add bash shebang
Merge branch 'w3c_tests' of https://github.com/28msec/zorba into w3c_tests
improved scripts to work with absolute paths everywhere