EDIT

ref #6539 Fix build problems

• set Bundle-RequiredExecutionEnvironment back to Java 1.8
• Remove indigo osgi dependency from target platform

ref #6539 remove Bundle-RequiredExecutionEnvironment

Upgrade jdt.core.prefs to Java 1.8

minor

Increase RequiredExecutionEnvironment to JavaSE-1.8 for test, releated to 45cabe7d

ref #6314: adaption to changes in exports

adding EditRepository as pluginRepository to solve dependency problems in jetty-maven-plugin - adding comment

adding EditRepository as pluginRepository to solve dependency problems in jetty-maven-plugin

Increase RequiredExecutionEnvironment to JavaSE-1.8 for all plugins

Increase Bundle-RequiredExecutionEnvironment to JavaSE-1.8