[maven-release-plugin] copy for tag 0.7.1

edn-java release 0.7.0

- Drop support for Java 7 (Require at least Java 8.)
- 59: Accept \uXXXX style unicode escapes in string literals
- 60: Support \uXXXX style 16-bit unicode character literals
- 62: Accept names (of keywords and symbols) which contain #

Merge branch 'release/0.6.0'

* release/0.6.0:
  README: show version 0.6.0
  build as 0.6.0
  tune travis config
  git ignores
  gradle coordinates
  typos
  update a few dependencies to newer versions
  drop Java 6 Support.

Release 0.5.0

47: parse namespaced maps as per CLJ-1910
-----------------------------------------

http://dev.clojure.org/jira/browse/CLJ-1910

  Maps written thus      parse as below
  -----------------      --------------
    #:foo {              {
       :a     1,            :foo/a 1,
        b     2,             foo/b 2,
        _/c   3,             c     3,
       :_/d   4,            :d     4,
        bar/e 5,             bar/e 5,
       :bar/f 6             :bar/f 6
    }                    }

Symbols or keywords appearing as keys in the map without a namespace
receive as a namespace the symbol following #: preceding the map. In
this example that symbol is 'foo'. (see the keys :a and b).

Maps so prefixed would lose the ability to contain keys with no
namespace unless they provided some mechanism to opt out of this
feature.  Within namespaced maps the namespace prefix _ will cause the
keyword or symbol to be parsed as being without a namespace. (see the
keys _/c and :_/d)

Symbols or keywords which already have a namespace (other than _ as
mentioned above) are parsed as they are just as if the map containing
them had not been namespaced.

Compatibility note:

Clients that use Scanner directly should be aware that the enum Token
has gained a new value:

  Token.DEFAULT_NAMESPACE_FOLLOWS

This is emitted by Scanner when "#:" is parsed. It will be followed by
a bare symbol naming the default namespace provided the input being
scanned is syntactically correct.

49: detect duplicate keys (elements) in maps (sets)
---------------------------------------------------

#49

When we detect duplicate keys (elements) in maps (sets) during parsing
an EdnSyntaxException will be thrown.

This is accomplished by teaching CollectionBuilder.add()
implementations used by default for Maps and Sets to check for
duplicates.

Third-party implementations of CollectionBuilder will probably want to
implement this check in their own add method as well.

Merge branch 'release/0.4.7'

* release/0.4.7:
  issue46: make PrintingExamples insenstive to hash ordering
  issue45: Teach Printers to print comma character literals correctly

release 0.4.6, resolving issue43

Merge branch 'release/0.4.6'

* release/0.4.6:
  ready pom.xml and README.md for release 0.4.6
  43: Keyword is now Serializable
  43: TaggedValue is now Serializable
  43: Tag is now Serializable
  43: Symbol is now Serializable
  43: DelegatingList is now Serializable
  43: add failing unit test for Serializability
  build as develop-SNAPSHOT
  improve javadoc comments to placate javadoc 8

0.4.5 fixes issue 40

0.4.3 fixes issue 35

Release 0.4.2 fixes issue #32