Update version to 4.10.3 in arc.pl

Update patch version in arc.pl

Add version update to arc.pl

Merge pull request #90 from sot/new-solar-flare

Use a new solar flare image

Update version to 4.9.0 in arc.pl

Update version to 4.8.0

Merge pull request #72 from sot/snapshot

Update to parse chandra.snapshot format including HRC side-A

Update version in code to 4.7.1

Update version in code to 4.7.0

Update version in arc.pl