Update jzlib version in pom to current jar version.
Use java.util.zip tools to decode (inflate) AmiraMesh files instead of zjlib methods.

The zlib methods appear to be faulty.
Encode (deflate) using java.util.zip methods instead of the zjlib ones.
Remove unused imports.
Remove debug message.
Add progress bar updates.

Conflicts:
	src/main/java/amira/AmiraMeshDecoder.java
Make call to static mehtod correctly.
Correct typos
Fix bug when reading AmiraMesh files.

There was a missing -1 in the calculation of the voxel calibrations.
Allow Avizo files to be read as well.

Avizo uses exactly the same format as Amira but the first line starts by Avizo instead of AmiraMesh.