Add os relpath filter

Merge branch 'bug/fix-health-check-to-zero-bug/7898' of https://github.com/botify-labs/ansible into botify-labs-bug/fix-health-check-to-zero-bug/7898

Check for empty os-release file, fixes #7885

Adding support for spot instances in ansible_lc.

Merge branch 'upgrade-release' of https://github.com/amenonsen/ansible into amenonsen-upgrade-release

Fix missing arg for _remote_chmod method.

Default is set to 300 seconds, which is AWS default.

This PR fixes a bug (#7898) where instances created within an autoscaling group using the `ec2_asg` module gets immediately terminated because the `health_check_period` is set to 0, which causes the instance to be checked without having the time to actually boot.

Adding `health_check_type` is needed because you may want to check your instance health against an ELB instead of just EC2 default cloudwatch.

AWS allows to define launch configuration with spot instances. This is also natively supported by boto (see http://boto.readthedocs.org/en/latest/ref/autoscale.html)

Adding win_group module

Bugfix and better error propagation for win_service module

Fix typo in apt module documentation

Fix typo in powershell setup module.

Adding win_service module

Shell expand DEFAULT_ROLES_PATH fixes #4897

Allow wait_for to wait on non-traditional files

Updates to Makefile include:
 * add targets: deb-src, deb-src-upload, deb-upload
 * add variables to control DEB building: DEBUILD_OPTS, DPUT_OPTS, DEB_PPA, DEB_DIST, DEB_RELEASE
 * create deb files for all release values in DEB_DIST

Several updates to packaging/debian/*
 * Updated control file
 * Whitespace/formatting of changelog

Add deb-build to .gitignore

See https://github.com/ansible/ansible/issues/7368

Fixes #7368

Fix localhost tasks with complex executables