Packaged MiGBase64.

Changes from original version.

• Move package to net.sourceforge.migbase64
• Add maven project file.
• Add very small test.
• Add Base64URLSafe (RFC4648)

Example Usage

import net.sourceforge.migbase64.Base64URLSafe;

//                                      input  lineSep  padding
String s = Base64URLSafe.encodeToString(bytes, false,   false);

Appendix

• Referenced Base64 spec