wip
Merge branch 'develop' into topic/tidy-up

Conflicts:
	macros/src/main/scala/datomisca/query.scala
add scala docs to Attribute
Merge branch 'develop' into topic/tidy-up
Merge branch 'develop' into topic/tidy-up

Correct compile error:

    [error] datomisca/macros/src/main/scala/datomisca/macros/ExtraMacros.scala:35: macro implementation has incompatible shape:
    [error]  required: (c: scala.reflect.macros.whitebox.Context)(str: c.Expr[String]): c.Expr[clojure.lang.Keyword]
    [error]  or      : (c: scala.reflect.macros.whitebox.Context)(str: c.Tree): c.Tree
    [error]  found   : (c: scala.reflect.macros.whitebox.Context)(q: c.Expr[String]): c.Expr[clojure.lang.Keyword]
    [error] parameter names differ: str != q
    [error]   def KW(str: String): Keyword = macro MacroImpl.KWImpl
    [error]                                                  ^
    [error] one error found
correct bad scaladoc links

tidy up links to v0.6 types
add scaladoc for Attribute2EntityReaderInj and Attribute2EntityReaderCast
add scaladoc for Attribute2FactWriter
add scaladoc for Attribute2PartialAddEntityWriter
Merge branch 'develop' into topic/tidy-up
Merge pull request #119 from dwhjames/topic/tidy-up

Scaladoc corrections and improvements
upgrade to sbt 0.13.6
upgrade to bintray-sbt 0.1.2
fix deprecation and feature warnings in build

- don’t use postfix ops
- migrate from deprecated method on sbt.PathFinder
attempt to quieten travis build

use global logLevel of warning where possible