replace FFI openssl version with Rbx openssl extension (which was adapted from MRI). adds new C API methods.
use the Gemstone/S ssl library for OpenSSL cext
simplify, allow recompilation of openssl w/o gemstone sources
cannot rb_set_len to 0, instead update the string with the char buffer
add WaitReadable and WaitWritable marker modules to IO
just punt on readability check and nonblocking SSLSocket api for now
not sure how this ends up as empty, but it does
fix another instance of direct passing of an RSTRING_PTR as buffer to openssl
fix definition order
satisfy compiler
added a test
modified String interpolation for new syntax with a hash
Fix #262: Unicode escaping in Strings.
Fix #262. Ruby RegExps are converted to UTF8, unicode escapes supported.
moved the implementation of % for String in post_prims
removed useless changes
Regular expressions: default encoding is UTF8.
Added test cases for Regexp.
Merge pull request #268 from MagLev/matthias/unicode-escaping

Matthias/unicode escaping
untag specs on travis