* perform lint/shellcheck tests on travis mac builds
* move osx builds first in travis
* install shellcheck on macos
* show if the lint test passed or failed
* don't have travis install ruby 2.6 on osx for now
* add test for travis-ci windows support
* Make 'ps' command options platform specific *nix/windows
* Add _clean_path for windows, apply to all homedir input arguments
* export GITSECRET_DIST="windows" in git hook if running windows
* Bash lint fixes
* use pgrep & kill, not ps+gawk+regex+system+kill
* install shellcheck and enable lint on macos/brew.
* add shellcheck fixes and exception
* reorder CHANGELOG entries
The full list of changes:
1. Added `.docker/` folder with Dockerfiles
2. Now `travis` runs integrational tests inside these containers
3. Now `travis` runs tests with `mac os x`
4. Now there are new ways to autodeploy `deb` and `rpm` packages
5. Fixed some issues
6. Also added `.ci/` folder, where utility scripts for travis are stored
7. Moved `git-hooks` into the separate folder: `utils/hooks/`
8. Added new target to the `Makefile`
9. `.gitignore` is updated to ignore `build/` folder and inner files
