rename package
remove step1
remove step1
update with junit last version
use property instead of  compiler declaration in maven pom
Merge branch 'empty' into step2
Merge branch 'step2' into step2-solution

Conflicts:
	.gitignore
	src/main/java/fr/xebia/xke/java8/step2/BasicCollectionOperations.java
use assertJ instead of fest assert
update branch for use assertj
Merge branch 'step2' into step2-solution
update branch for use assertj
update for assertj
Merge branch 'step2-solution' of https://github.com/ibeauvais/PlayWithJava8 into step2-solution