Merge pull request #984 from belforte/master

for crab)_2_10_2_patch2
Merge pull request #985 from belforte/master

previous commit also fixes #976
Merge pull request #987 from belforte/master

typo: knwon --> known fixes #986
added check about migration of parents and summary file at the end of user dataset publication
Adding renewed support for PBS

The "pbsv2" scheduler talks with pbs via the command line tools, which
negates the need to have libtorque + python binaries installed.
Merge pull request #990 from PerilousApricot/master

Adding renewed support for PBS
use PRODCOMMON_0_12_18_CRAB_59 see #991
add verify_dbs_url function
Merge remote-tracking branch 'upstream/master'