running and good looking draft;
InMemoryReportWriter now uses a Map instead of a List of concepts/constraints;
#115 optimize creation of INVOKES, READS and WRITES relations
Merge remote-tracking branch 'origin/master'
#115 fixed a bug for field caching
resize is working now;
#115 activate weak cache for Neo4j
styled the content;
Merge remote-tracking branch 'origin/master'

Conflicts:
	scm/common/src/main/java/com/buschmais/jqassistant/scm/common/report/ReportHelper.java
InMemoryReportWriter now uses a Map instead of a List of concepts/constraints;
#71 prepared jQA UI;
Merge remote-tracking branch 'origin/master'
exclude manual test from maven run
#71 fixed ClassCastExceptions;
Added Gitter badge
#118 cleanup of scanner plugin structures
#118 improve exception handling for failing scans
#118 fix brkoen build
#71 MetricGroup and Metric can now be obtained from jqassistant XML files;
#71 reading metrics from XML;