Allow stylesheet for printing

As suggested by: https://github.com/osTicket/osTicket-1.8/issues/755
deploy: Disable errors on deployment

Also, write js and css links to be forcibly reloaded by the browser after
deployment
forms: Don't save on validation errors
Merge pull request #909 from greezybacon/issue/new-form-validation

forms: Don't save on validation errors

Reviewed-By: Peter Rotich <peter@osticket.com>
Merge pull request #907 from clonemeagain/patch-6

Allow stylesheet for printing

Reviewed-By: Peter Rotich <peter@osticket.com>
oops: Fix deploy adding 0x01 byte to bootstrap.php
Merge remote branch 'upstream/develop' into develop-next

Conflicts:
	include/staff/dynamic-form.inc.php