add OCaml & Erlang

Signed-off-by: Fotis Georgatos <fotis.georgatos@uni.lu>
add homepages for OCaml/Erlang & optimize better OCaml build

Signed-off-by: Fotis Georgatos <fotis.georgatos@uni.lu>
rename to ErlangOTP and make no-java explicit

Signed-off-by: Fotis Georgatos <fotis.georgatos@uni.lu>
bugfix ocaml source_url

Signed-off-by: Fotis Georgatos <fotis.georgatos@uni.lu>
disable parallel build for OCaml
Merge pull request #704 from boegel/contrib_OCaml_and_Erlang

add OCaml & Erlang