Cleanup duplicated and unused functions from Tree
Get inline optimization for some Integer functions
Cleanup default implementation of 'leaves' and 'nodes'
Fix infinite loop for 'leaves' in IndexedList
Fix a typo in docstring in BRAGG
Fix 'children' in URAGG and Stream, add documentation
fix 'children' in BinaryRecursiveAggregate
Replace local function 'allk' with 'tower'
Fix coercion of polynomials to patterns
Block unwanted evaluation