* Refactor netkeystore.c to make client and server code testable.
* Add a client test for setting new passwd and changing passwd.
* Exclude "." and ".." from reset_keystore().
* Change ServerCommand.executeCommand() to accept variable length of
arguments and add convert() to marshalling the args to bytes.
* Keystore.java is revised accordingly.
+ Use '\0' as the delimiter.
+ Allow whitespace character for keystore password.
In previous implementation, we use space as the delimiter. That
will stop user from using passphrase with whitespace character.
1. Also change the keyname delimiter in CertTool.java.
2. Return NOTFOUND if the result.len==0 in the listKeys().
3. Define the keystore states in the class Keystore.
1. Have the new Keystore for mini-keystore impelemntation.
2. Add CertTool library and jni dll for handling keygen and certificates.
3. Make Reply hidden.
4. Revert some 'incorrect' change and correct the description.
