test(cmmn): provide some example test cases

related to CAM-2318
fix(qa): fix script engine integration tests
chore(qa): add spin as dependency of script language jboss modules
fix(tasklist): use temporary redirect
chore(webapps): improve accessibility for ui tests

add "sem" tags to webapps navigation.html
fix(engine): fix typos
fix(engine): add missing annotations and prefixes
fix(distro/jboss): normalize snapshot artifacts
fix(tasklist/redirect): redirect for static assets
chore(parent): use alpha release of spin and connect
 chore(release): Prepare release: set version to 7.2.0-alpha2
 chore(release): Prepare next development version: 7.2.0-SNAPSHOT
chore(scriptfactory): use string instead of reader for script source
fix(qa/jboss): exclude javascript tests
fix(webapp/core): Javadoc completed

What to use instead of deprecated PluginRegistry
Merge pull request #81 from ingorichtsmeier/patch-1

fix(webapp/core): Javadoc completed
feat(engine): async continuation AFTER activity

Introduces Asynchronous continuations after activities.

Both activities with outgoing sequence flows and without outgoing
sequence flows are supported.

Configured through camunda:asyncAfter="true".

Deprecation:
camunda:async="true" is deprecated and should be replaced with camunda:asyncBefore="true".

related to #CAM-721
fix(engine): use list for multiple job definitions for async tasks

- it is possible that an async continuation exists before
  and after the task so a list required as property

related to #CAM-721
fix(REST/query/date): query with a date variable

If a variable query paremeter contains a String value which has the format
"yyyy-MM-dd'T'HH:mm:ss" then the value will be parsed to a date. The
parsed date will be used for the query.

related to CAM-2123
fix(signavio-it): adjust ITs to new label behaviour