discontinue scalaz-seven branch
Fix TaskTest.nmap6 test

Fix #756.

Don't assume that thread scheduling is deterministic or that
Thread.sleep can be a form of synchronization.
(One could maybe also remove the Thread.sleep calls, to speed up the
test). Depending on the actual intent of the test, this might or might
not be appropriate.
MaybeInstances should be abstract class
fix -doc-source-url
Avoid unit insertion
Avoid ugly `e -> (())`
Deal with deprecation warnings from Scala 2.11

This is only for the warnings which might be fixable without breaking
support for Scala 2.9.
Address Scalaz-related deprecation warnings
Merge pull request #760 from Blaisorblade/topic/deprecation

Reduce deprecation warnings
Try making TaskTest more robust
Use typesafe equality in an example

This prevents the sort of breakage in
c5980d619dd624288180383125a5dc09ed6b997e (which fixed a (spurious)
warning which should have been an error).
Merge pull request #761 from Blaisorblade/topic/equals

Use typesafe equality in an example
Add Tag syntax with unwrap
Merge pull request #767 from julien-truffaut/tag_syntax

Add Tag syntax with unwrap
use TagOf#subst1
Add IsomorphismOptional trait.
Merge pull request #768 from hgiddens/isomorphism-optional

Add IsomorphismOptional trait.
Make TaskTest.nmap6 test robust with CyclicBarrier

See comments in code for details.
Add AdjunctUsage.scala showing one way of using an adjunction
Added pure/point for Free monad