change extension on markdown files

rename README.markdown -> README.md and CHANGES.markdown -> CHANGES.md

CHANGES.md

@@ -0,0 +1,62 @@
+v1.4.1
+
+* fixes a bug with interaction between `dirty_strings` and even numbers of escape characters
+* performance enhancements
+
+v1.4
+
+* radically refactored decoder
+* `dirty_strings` now behaves intuitively in decoding. bad codepoints, bad utf8, illegal characters and escapes (except `"` and `'` if `single_quoted_strings` is enabled) are ignored completely
+* `incomplete_handler` & `error_handler` are now available for use, see documentation in README
+
+v1.3.3
+
+* `pre_encode` now orders input in the order you'd expect
+
+v1.3.2
+
+* `pre_encode` is now able to handle tuples *correctly*
+
+v1.3.1
+
+* `pre_encode` is now able to handle tuples
+
+v1.3
+
+* introduces `prettify/1` and `minify/1`, shortcuts for `format/2`
+* introduce `encode/1,2` and `decode/1,2` as primary interface to built in tokenizers. `to_json/1,2` and `to_term/1,2` remain accessible but not advertised
+* new `parser/3` function exposes syntactic analysis stage for use with user defined tokenizers
+* improved documentation
+
+v1.2.1
+
+* fixes incorrect handling of escaped forward slashes, thanks bob ippolito
+
+v1.2
+
+* rewritten handling of string escaping to improve performance
+* `pre_encode` and `post_decode` hooks, see README
+* `relax` option
+
+v1.1.2
+
+* add `dirty_strings` option
+* more fixes for invalid unicode in strings
+
+v1.1.1
+
+* fixes bug regarding handling of invalid unicode in R14Bxx
+
+v1.1
+
+* improvements to string escaping and json generation performance
+
+v1.0.2
+
+* fixes to function specs
+* rewritten README
+* `comments` option
+
+v1.0.1
+
+* rebar fix