JBIDE-14542 Update parent pom to beta2
JBIDE-14564 - Runtime detection prompt shown on every IDE start
JBIDE-13655 bumped usage to 1.2.1-SNAPSHOT
JBIDE-14599 <!doctype html> vs <!DOCTYPE html>

Algorithm is FileUtil.isDoctypeHTML() is improved.
Test is added.
JBIDE-14616: remove parent.relativePath

* To avoid issue with sync of local parent & remote (Nexus) parent
* Make local build behave more like CI build