0.7.0

If you installed xcodes with homebrew you can upgrade with brew upgrade robotsandpencils/made/xcodes.

Changes

• Check for existing Xcode archive before downloading (#66) @interstateone
• Add uninstall command (#64) @interstateone
• Ensure requested version isn't already installed before downloading (#63) @interstateone
• Sign with hardened runtime and timestamp (#62) @interstateone
• Move XIPs to Trash instead of immediately deleting them (#60) @interstateone