changelog update.
Updated 1.env-setup.sh. Changed QT source.

The source website for the qt was outdated, updated with a new link.
Merge pull request #22 from dale3rulz5577/patch-1

Updated 1.env-setup.sh. Changed QT source URL.
Update and rename terracoin-qt.pro to plurcoin-qt.pro
Merge branch 'master' into dev-0.1.3