Rework examples and add a web server builder

--HG--
rename : src/test/java/examples/simple/SimpleExample.java => src/test/java/examples/basic/BasicExample.java
rename : src/test/java/examples/simple/SimpleTest.java => src/test/java/examples/basic/BasicTest.java
extra : amend_source : c442644553ab0f650d31d6e4e0d1d52e70fc8b42