Add modifier for changing Lambda construct's function
Add tutorial entry for LambdaModifier
Fix newline at the end of file
Raise TypeError in case of application of a LambdaModifier to a non-Lambda construct
Include type of passed lambda_construct in TypeError raised by LambdaModifier
Add test for LambdaModifier raising TypeError
Merge pull request #1 from hmax/master

Add modifier for changing Lambda construct's function