Merge pull request evanphx#100 from BenTheElder/modules-v5

add module v5

Merge pull request evanphx#99 from dataturd/topic/fix-issue-88

Fix nil pointer dereference when comparing null to actual value in Equals()

Merge pull request evanphx#85 from brettbuddin/dont-replace-nonexiste…

…nt-keys

Conform to RFC6902 replacement semantics

Cleanup errors to help understand what failed. Fixes evanphx#75

Merge pull request evanphx#79 from sbward/master

Expose Operation with accessor methods

Merge pull request evanphx#73 from caesarxuchao/move-should-add

"move should functionally equal to "remove" followed by "add"

Add note about SupportNegativeIndices

Merge pull request evanphx#60 from launchdarkly/prevent-bad-rm

Support array remove with negative index

Merge pull request evanphx#52 from clagraff/master

Allow arrays for CreateMergePatch