update version to 0.4.0-SNAPSHOT

0.3.1-SNAPSHOT will be used if in need of a patch on version 0.3.0
bundle jsr305 dependency in IDEA plugin directory and update .iml

having the jsr305 dependency directly in source will make building the project more portable
[#7] parse annotations on params in Javax model and generate them

add List<DAAnnotation> property to DAParameter class
add population of new property during Javax model parsing
update expected generated file content in integration tests
[#7] add annotation parsing for parameters to Psi parsing