8177848: Rename Configuration(Impl) classes
Reviewed-by: jjg

8169608: Compiler Tree API's Doctrees.getDocTreePath needs to accept a PackageElement
8157611: field visiblePackages is null for the unnamed module producing NPE when accessed
Reviewed-by: jjg, jlahoda

8138725: Add options for Javadoc generation
Reviewed-by: ksrini, bpatel, ahgross

8165991: Fix DocTreeFactory newDocCommentTree
8154349: New doclet incorrectly shows entire text body for JavaFX properties in summary section
Reviewed-by: jjg

8160301: javadoc RootDoclmpl and DocEnv needs to be renamed
Reviewed-by: bpatel, jjg

8035473: [javadoc] Revamp the existing Doclet APIs
8146529: Update the new Doclet API
8146427: "-nohelp" option issue
8146475: "-helpfile" option issue
Reviewed-by: alanb, bpatel, ihse, jjg, jlahoda, mchung, ogb, vromero