DATAREST-1317 - Simplify reference documentation setup.

Adapt includes paths to generated asciidoctor sources directory.

src/main/asciidoc/etags-and-other-conditionals.adoc

@@ -1,6 +1,6 @@
 [[conditional]]
 = Conditional Operations with Headers
-:spring-data-rest-root: ../../..
+:spring-data-rest-root: ../../../..
 
 This section shows how Spring Data REST uses standard HTTP headers to enhance performance, conditionalize operations, and contribute to a more sophisticated frontend.
 

src/main/asciidoc/index.adoc

@@ -3,22 +3,15 @@
 Jon Brisbin, Oliver Gierke, Greg Turnquist, Jay Bryant
 :revnumber: {version}
 :revdate: {localdate}
-:linkcss:
-:doctype: book
-:docinfo: shared
-:toc:
-:toc-placement!:
-:source-highlighter: prettify
-:icons: font
-:imagesdir: images
 ifdef::backend-epub3[:front-cover-image: image:epub-cover.png[Front Cover,1050,1600]]
-:spring-data-commons-docs: ../../../../spring-data-commons/src/main/asciidoc
+:spring-data-commons-docs: ../../../../../spring-data-commons/src/main/asciidoc
 
 (C) 2012-2018 Original authors
 
 NOTE: Copies of this document may be made for your own use and for distribution to others, provided that you do not charge any fee for such copies and further provided that each copy contains this Copyright Notice, whether distributed in print or electronically.
 
 include::preface.adoc[]
+
 include::{spring-data-commons-docs}/dependencies.adoc[leveloffset=+1]
 
 [[reference]]

src/main/asciidoc/integration.adoc

@@ -1,6 +1,6 @@
 [[integration]]
 = Integration
-:spring-data-rest-root: ../../..
+:spring-data-rest-root: ../../../..
 
 This section details various ways to integrate with Spring Data REST components, whether from a Spring application that is using Spring Data REST or from other means.
 

src/main/asciidoc/security.adoc

@@ -1,6 +1,6 @@
 [[security]]
 = Security
-:spring-data-rest-root: ../../..
+:spring-data-rest-root: ../../../..
 :spring-security-docs: http://docs.spring.io/spring-security/site/docs/current/reference/htmlsingle
 
 Spring Data REST works quite well with Spring Security. This section shows examples of how to secure your Spring Data REST services with method-level security.

src/main/asciidoc/tools.adoc

@@ -1,6 +1,6 @@
 [[tools]]
 = Tools
-:spring-data-rest-root: ../../..
+:spring-data-rest-root: ../../../..
 
 == The HAL Browser