bump version number
add .idea to .gitignore
add slf4j-log4j binding to hmac-auth-proxy runtime
use chunked encoding to remove in memory copying of streaming data
upgrade to Apache4 http client. previous version fails on chunked encoding
WrappedRequest no longer uses in memory operations if possible. Also remove MessageDigest dependency in RequestSigningUtil
remove dead code
increase read performance on WrappedServletInputStream
bump version number