Fix an infinite loop when the jids array is empty

See merge request nordugrid/arc!1320

The jobs_info routine matches the known jobs with those in
the batch system, but commit 91d2e601 introduces a bug
where the index in the jids array assumes that there is at
least one job.

Since the routine should return an empty hash in case jids
is empty, get this done as soon as possible before doing
any other work.

Updated Swedish translations

See merge request nordugrid/arc!1318

Adding log messages for failed execution of external process.

See merge request nordugrid/arc!1316

Blocking of jobs when previous stage fails

See merge request nordugrid/arc!1314

Referencing local variable not available outside method (Fixes BUGZ-4038)

See merge request nordugrid/arc!1312

rying to make sure blocking of check_deploy does not occur it previous stage fails for another platform

The actual fix for local variable reference. Previous related commit was not actually fixing the problem.

Alllow multi-job XRSL REST submission

See merge request nordugrid/arc!1310

Arcctl datastaging (Fixes BUGZ-4038)

See merge request nordugrid/arc!1308

Alllow multi-job XRSL parsing on server side to make multi-job XRSL submission work for REST interface.

Posix compliance fixes.

See merge request nordugrid/arc!1301

Package name different for debian based systems

See merge request nordugrid/arc!1295

Trying to set up non-blocking stages

See merge request nordugrid/arc!1307

Optimize the matching of pbs jobs to ARC jobs

See merge request nordugrid/arc!1305

Remove incomplete XML tag

See merge request nordugrid/arc!1297

Removing duplicate release issue template

See merge request nordugrid/arc!1303

Escape JSON strings almost as defined in specs.

See merge request nordugrid/arc!1299

The original nested loop with linear search was expensive;
by sorting the arrays beforehand only a single traversal
of both structures simultaneously is required.

Vfork speedup

See merge request nordugrid/arc!1293

Delegation id in xrsl

See merge request nordugrid/arc!1291