chore(package): update browserify to version 15.2.0
chore(package): update browserify to version 15.2.0

Closes #197
larshp/abapOpenChecksJS,larshp/abaplint,larshp/abaplint,larshp/abapOpenChecksJS,larshp/abapOpenChecksJS,larshp/abaplint,larshp/abaplint