v0.5.5: Rename push.PushCurrentDirFiles().

• Rename push.PushCurrentDirFiles() to PushFiles().
  Thus making its API also more generic, adding the possibility of specify the desired source path.

• Add tests. :-)

v0.5.4

• When pushing, prints token back only if it's a first-time push.
• Flag --secret for the api is now mandatory.
• Implement new archivebuffer.NewTarballBuffer() change and ignore the BaseDir when archiving.

v0.5.3 - The open source release!

This is the first open source release of Pimba.