Renaming Z.conf() -> Z.getConf()
Started refactoring of Z from UnitTest, favor testability of children Q and ExecStatement
Renaming ExecStatement -> ShellExecStatement, JavaDoc added
Merge pull request #8 from alexander-bzz/true-testability-refactoring

Testability refactoring
Handle mime type of .css .js
Bubble chart visualization
Come from https://github.com/vlandham/gates_bubbles
Handle mime type of .css .js
Bubble chart visualization
Come from https://github.com/vlandham/gates_bubbles
Merge branch 'master' of github.com:Leemoonsoo/zeppelin