Set development version
walk into maps only while patching

because only maps are supported right now
old behavior had a bug leading to that
(patch {} [{:x [{}]} {}]) resulted into {}
add test for patching nested heterogenous colls
Merge pull request #9 from ul/development

Fixes #8
support equality checks for other collections
Create diff for vectors
Diff supports adding vector elements
Implement nested diffing for vectors
Minor refactoring
Simple removals for vector
Nested removals of vectors
Minor refactoring
Refactoring for readability of pathing logic
Support for patching vectors
Implemented vector removal
Fixes #2: Support vectors
Fixes #7: Improve README
Minor adjustment of example in README
Support for creating alteration diff of sequential types
Support for creating removals diff for sequential types