Add tests for 'deparse' function
Make 'deparse' function correctly handle parentheses
Minor enhancements
Merge pull request #25 from magistere/deparse

Make 'deparse' function correctly handle parentheses
Merge remote-tracking branch 'upstream/master'
Update tests using @test macro
Complete test updating
Merge pull request #26 from magistere/tests

Update tests using @test macro
Merge remote-tracking branch 'upstream/master'

Conflicts:
	test/symbolic.jl
Comment clarification
Merge pull request #27 from magistere/comm

Comment clarification
Merge