Changes

Use 4.12 I-build for eclipserun.
So lucene indexes are Lucene 8.x
Change-Id: Iaa833ad0ee409c47d99c319fa57a39bfdac1c32b Signed-off-by:
Alexander Kurtakov <akurtako@redhat.com>

Fix build now that platform 4.12 is released.
Change-Id: I1abc74f87d9eda902e74c674573b3779982d34a6 Signed-off-by:
Alexander Kurtakov <akurtako@redhat.com>

Bug 547696 - Drop JS modules
Change-Id: I0f5af91685374be3162e1a4e426dc278397c4581 Signed-off-by:
Alexander Kurtakov <akurtako@redhat.com>

Bug 547697 - Drop Python modules
Change-Id: I04fa26dfc5ab7b3044b22f6104498168d888f978 Signed-off-by:
Alexander Kurtakov <akurtako@redhat.com>

Update maven build plugins
* maven compiler to 3.8.1
* jacoco to 0.8.4
Change-Id: Ic5f0a20f8b5fda6266883a974f927b939f7c35fd Signed-off-by:
Alexander Kurtakov <akurtako@redhat.com>

Bug 533023 - Drop H2 index implementation
Don't publish the index feature. Only index.lucene from now on.
Change-Id: I18413941f4118e6601e5bfa855b0f0d4f88c32e1 Signed-off-by:
Alexander Kurtakov <akurtako@redhat.com>

Bump version to 6.0.0-SNAPSHOT.
Change-Id: I3e6621f7e4c87a28a376e06b0a19973c8c5dc6aa Signed-off-by:
Alexander Kurtakov <akurtako@redhat.com>