updating version for 4.2.0Beta release
Issue #21258:allow null default locations
21267:disable auto-distribute for lot/serial items
Merge pull request #125 from garyhgohoos/21258

Issue #21258:allow null default locations
Merge pull request #126 from garyhgohoos/21267

21267:disable auto-distribute for lot/serial items
Merge pull request #124 from gpazo/tags/R4_2_0BETA

updating version for 4.2.0Beta release