Add issuer check when verifying child certificate.
Make error message more specific.
Release 0.2.27.
Start 0.2.28.
Fix typo; ensure binary string iv is converted to byte buffer.

- Addresses #99.
Release 0.2.28.
Start 0.2.29.
Merge branch 'master' of git://github.com/WayneSan/forge into WayneSan-master
Use spec format.
Replace random.generate, not random.getBytes.
Use random.getBytesSync(), some formatting changes.
Add note about insecurity of des.
Release 0.2.29.