v1.0.0

Netpbm v1.0.0

Diff since v0.4.1

Closed issues:

• An error and a deprecation warning while loading "PBMBinary" format (#22)

Merged pull requests:

• Add read/write of text formats (#23) (@magister-ludi)
• Arrays with non-default indexing (#24) (@magister-ludi)