New groupId, Bug fixes

Bug fix:

• #7
• new groupid no.maddin.niofs

The release is available on Maven Central with the following coordinates:

<dependency>
  <groupId>no.maddin.niofs</groupId>
  <artifactId>nio-fs-(sftp|smb|webdav)</artifactId>
  <version>2.0.0</version>
</dependency>

Fixed traversing smb file systems with spaces

fixed issue #6 (was #4 )
Published to maven central