Automatically push upon release

Check for installed Strawberry Perl on Travis CI

Merge pull request RexOps#1433 from RexOps/fallback_hostname

Fix fallback hostname detection on Linux

Release 1.12.2

Mark file on_change tests known to fail on Windows

Merge pull request RexOps#1426 from RexOps/file_on_change

Fix file on_change hook when source option is used

Update pull request template

Release 1.12.1

Merge pull request RexOps#1393 from RexOps/rex_description

Clarify description of the rex script

Release 1.12.0