attach data for match_on arguments
Merge branch 'master' of github.com:markmfredrickson/optmatch
tests for revisions
data attach for full/pair match too
check that data is a df before attaching
Revert "check that data is a df before attaching"

This reverts commit dc165758ef8c3a4ffe07f3536cb976620cdff90b.
Revert "data attach for full/pair match too"

This reverts commit 3ba879a4433e2bc56f7bbe26b9a8989739f68b0c.
Revert "tests for revisions"

This reverts commit c178f3a4419f80d948949569be9024bcc76ef3f5.
Revert "attach data for match_on arguments"

This reverts commit 0199c38cdf30423636653a67ecca15c4cf6cd337.
Adjusted summary.optmatch wording re match failure.
Fixed optmatch.dlist method for num_eligible.matches.
Improved omit frac calculation under infeasibility recovery.
Revert "Improved omit frac calculation under infeasibility recovery."
(Code changes in error and didn't consistently produce desired result.)
This reverts commit 4a900253b573c9196ba5c90a078b701ca52cfd49.
Adjust NA handling strategy in match_on.glm.
adding a match_on.glm test with an attached data.frame
Another test to accompany the fix for #74 (5334987)
match_on.glm should attempt to use the data from the glm when possible, falling back to model.frame on the formula
Clarified some test explanations
starting a distUnion function to join distance specifications
adding documentaiton to distUnion