Merge pull request #4 from blackheaven/master

Add IfStatment test for traverse
Merge pull request #5 from blackheaven/master

Refactorings + improvements
starting problem 5
starting problem 5
fix tests
merge
removed watch test
test passed
Clean code coverage search
Clean traverse tests
fix iterators
Clean linker/builders and pruner/constructors
Merge remote-tracking branch 'upstream/master'

Conflicts:
	src/lib/traverse/test.js
refactor tests
Problem #4 fixed
Add custom linter
Merge commit 'upstream/master~'
Merge remote-tracking branch 'upstream/master'