	Changes linked fns warn if not united, allow substitutions for linked vecfns (details / githubweb) small fixes (details / githubweb) addd test (details / githubweb) only add gradients if there's truthy tags (details / githubweb) clean up warnings (details / githubweb) closes #1522 (details / githubweb)
	Started by upstream project CE_gpkit_PR_dependencies build number 2347 originally caused by: GitHub pull request #1543 of commit 8283615ed1a320c299358663e68914870270190d, no merge conflicts.
	Revision: e6e3e27bdfd82f44ea98f6e95a5692ba1cb7e5da Repository: https://github.com/convexengineering/gpkit origin/pr/1543/merge origin/master
	SCM: git https://github.com/convexengineering/gpkit Commits since last build: 200 Latest commit: e6e3e27
	0 errors, 0 warnings
	Test Result (no failures)