Bump version number to 2.7.1
[SVG Export] File encoding should be UTF-8

* See GitHub issue #40
* Also, set the correct project classpath for the JRE
Merge branch 'hotfix-2.7.1'
Include a link to the wiki about contributing code to Archi, for easy
reference from GitHub.
Make structural chain documentation clearer.

Clarify the documentation for structural chains: at least two
relations to make up a chain.
Move a section forward to make the content present it self in a slightly more
"sequential reading" friendly way.
[Unit Tests] Check for null
[magwas] Ubuntu Shell scripts combined into one script

* Provided by magwas (mag@magwas.rulez.org)
[SVG Export] Add Preferences Initialiser

* Add Preference Initialiser the "Eclipse" way
* One Unit Test was failing the old way
[Code Refactor] Use single recursive methods

* Let's be smarter about this, ok?
Merge PR #49
Merge PR #50 and edits

* Some additional edits nade
[magwas mvn] Add all pom.xml files and installer files

* Cherry-picked from magwas' git tree (mag@magwas.rulez.org)
* Sorry I couldn't do a straight merge from Pull Request #45
[mvn] Add example Windows Batch file to run the Maven Build

* Please edit to add your own paths!
versioning, drone build
versioning fix
updatever call in drone.sh
Merge branch 'feature/mvn2' into develop

Conflicts:
	com.archimatetool.build/archimate.product
	com.archimatetool.build/branding/linux/Archi-Ubuntu.sh
	com.archimatetool.build/pom.xml
	com.archimatetool.canvas/pom.xml
	com.archimatetool.csv/pom.xml
	com.archimatetool.editor.browser/pom.xml
	com.archimatetool.editor.fullscreen.macos/pom.xml
	com.archimatetool.editor.launch.win32/pom.xml
	com.archimatetool.editor/pom.xml
	com.archimatetool.export.svg/pom.xml
	com.archimatetool.help/pom.xml
	com.archimatetool.importexportexample/pom.xml
	com.archimatetool.jasperreports/pom.xml
	com.archimatetool.jdom/pom.xml
	com.archimatetool.model/pom.xml
	com.archimatetool.reports/pom.xml
	com.archimatetool.templates/pom.xml
	com.archimatetool.widgets/pom.xml
	com.archimatetool.zest/pom.xml
	drone.sh
	pom.xml
	tests/com.archimatetool.editor.tests/pom.xml
	tests/com.archimatetool.export.svg.tests/pom.xml
	tests/com.archimatetool.jdom.tests/pom.xml
	tests/com.archimatetool.model.tests/pom.xml
	tests/com.archimatetool.tests/pom.xml
	tests/com.archimatetool.testsupport/pom.xml