Made most functions private.

This will probably be the first version of the library.

compression.go

@@ -7,15 +7,15 @@ import (
 )
 
 //Decompressor is a squashfs decompressor interface. Allows for easy decompression no matter the type of compression.
-type Decompressor interface {
+type decompressor interface {
 	Decompress(io.Reader) ([]byte, error)
 }
 
 //ZlibDecompressor is a decompressor for gzip type compression
-type ZlibDecompressor struct{}
+type zlibDecompressor struct{}
 
 //Decompress reads the entirety of the given reader and returns it uncompressed as a byte slice.
-func (z *ZlibDecompressor) Decompress(r io.Reader) ([]byte, error) {
+func (z *zlibDecompressor) Decompress(r io.Reader) ([]byte, error) {
 	rdr, err := zlib.NewReader(r)
 	if err != nil {
 		return nil, err