Fixed bugs:

• Issue #234: Renamed variabled refered in macro causes unbound variable error
• Issue #235: C assert error on encrypted home of Ubuntu
• Issue #236: make-der-utc-time creates wrong DER time
• Issue #237: export-private-key for RSA results wrong private key
• SRFI-19 didn't export modified julian day conversion procedures
• (archive tar) couldn't expand entry of multiple of 512 bytes (including header)

New features:

• TOML library (text toml) has been added (not documented)
• Calendar library (sagittarius calendar) has been added (not documented)
• (rfc tls) is replaced to C SSL implementation (either OpenSSL or Schannel)

New platform supports:

• MSYS2 is supported (experimental)
• MinGW is supported (experimental)