MiscUtil: added hostname to error notifications

* Adds hostname to subject line of emergency notification
  e-mails. (closes #1546)

Reviewed-by: Jan Aage Lavik <jan.age.lavik@cern.ch>
BibSched: Adds missing file from Makefile
gitignore: Appended missing bin files
OAIHarvest: fix path for temporary authorlists

Co-authored-by:	Jerome Caffaro <jerome.caffaro@cern.ch>
Reviewed-by: Tibor Simko <tibor.simko@cern.ch>
BibAuthorID: fix in the 'Name variants' box
PdfChecker: create RT tickets
RefExtract: do not create old tickets

* Do not create tickets for records older than 4 months
BibEdit: fix clone removing 005 field
BibEdit: avoid double request changing to textmarc
PdfChecker: crash when no records processed

* Fixes a small bug that would crash the task when no records
  were processed.
BibSched: error when switching to manual

* Fixes "time data did not match format" errors when switching
  to the "forever" manual mode.
BibSched: confirmation before deleting tasks

* Displays a Yes/No box to make sure you don't delete tasks by mistake.
OAIHarvest: fixes missing import
Refextract: 5 digits arxiv numbers detection
BibAuthorID: quick fix
BibSched: check crashed tasks

* In the bibsched daemon, every 50 cycles, check for local tasks that have
  crashed.
BibSched: store debug mode in db

* Store debug mode in database so that we can switch it on and off without
  restarting the bibsched daemons.
OPS: BibEdit: retrieve record from history instead of bibfmt
BibSched: fixes for crashed tasks checks

* Fixes a bug that would mark a task as crashed because the pid of that
  task would not exist anymore but because the task has completed properly.
OPS: BibEdit: improve previous check for get_bibrecord