[#1788] [#1789] set permissions properly on auth mechanism files during postinstall
[#1788] [#1789] set permissions properly on auth mechanism files during postinstall

leesab/irods,PaulVanSchayck/irods,leesab/irods,PaulVanSchayck/irods,leesab/irods,janiheikkinen/irods,janiheikkinen/irods,PaulVanSchayck/irods,leesab/irods,PaulVanSchayck/irods,PaulVanSchayck/irods,leesab/irods,janiheikkinen/irods,janiheikkinen/irods,janiheikkinen/irods,janiheikkinen/irods,leesab/irods,PaulVanSchayck/irods,janiheikkinen/irods,janiheikkinen/irods,PaulVanSchayck/irods,PaulVanSchayck/irods,leesab/irods,PaulVanSchayck/irods,janiheikkinen/irods