rds-command-line-tools: use versioned download

Closes #17190.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
node 0.8.18

Closes #17193.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
libpurple: add libgcrypt as a build-time dep so that finding gnutls works

Closes #17187.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
NZBGet 9.1

Closes #17188.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
curl-ca-bundle 1.87

Closes #15760.
New formula: git-flow-clone

Closes #16194.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>