Basic float support
Annotation
Tests at extended level
Integrate float into edn datum type, fixing bugging
Merge branch 'terml' into numbers
Merge branch 'master' into numbers

Conflicts:
	edn/tests/test_ast.py
	edn/tests/test_extended.py
Parsing of exact floating point
Failing test
Use ExactFloat for AST representation
Handle exact floats with no fractional element
Handle encoding from Decimal
Remove stale comment
Change the style of test to permit more entries easily
We can have all sorts of things between a tag and its value
Merge pull request #12 from jml/numbers

Floating point support
Merge pull request #16 from jml/tagged-value-fix

Tagged value fix
Merge branch 'master' into nil-again

Conflicts:
	edn/tests/test_extended.py