fix the directory of currentpid for azkaban-*-start.sh
add the mysql connection properties which to use utf-8 charset
Fix the code fromat
Use addConnectionProperty to add connection property
Merge pull request #190 from d0ngw/master

- Add "useUnicode=yes" and "characterEncoding=UTF-8" properties to MySQLBasicDataSource
- Fix the directory of currentpid for azkaban-*-start.sh