Merge branch 'recycler'

# Conflicts:
#	README.md
#	graphview/build.gradle
#	graphview/src/main/AndroidManifest.xml

Remove unnecessary attributes from manifest

Merge branch 'kotlin'

# Conflicts:
#	README.md
#	gradle/wrapper/gradle-wrapper.properties
#	graphview/build.gradle
#	graphview/src/main/java/de/blox/graphview/Graph.java
#	graphview/src/main/java/de/blox/graphview/GraphNodeContainerView.java
#	graphview/src/main/java/de/blox/graphview/Node.java
#	graphview/src/main/java/de/blox/graphview/edgerenderer/ArrowEdgeRenderer.java
#	graphview/src/main/java/de/blox/graphview/layered/SugiyamaEdgeRenderer.java
#	sample/build.gradle
#	sample/src/main/java/de/blox/graphview/sample/GraphActivity.java

dependency update + version bump

update README + version bump

Fix for a workaround to differentiate the graph types when setting an…

… algorithm without having a graph

Bug fixes

Merge branch 'master' of https://github.com/Team-Blox/GraphView