Merge branch 'feature/semester-resource' of github.com:DraCzris/kosapi_client.rb into feature/semester-resource

Conflicts:
	lib/kosapi_client/resource/semesters_builder.rb
	spec/integration/semesters_spec.rb

Author: Tomáš Polívka

lib/kosapi_client/resource/semesters_builder.rb

@@ -6,9 +6,9 @@ class SemestersBuilder < RequestBuilder
       #   GET /semesters              =>  client.semesters.items
       #   GET /semesters/{code}       =>  client.semesters.find({code})
       #   GET /semesters/next         =>  client.semesters.next
+      #   GET /semesters/current      =>  client.semesters.current
       #
       # TODO:
-      #   GET /semesters/current      =>  client.semesters.current
       #   GET /semesters/prev
       #   GET /semesters/scheduling
       ###