Pre-stable release with bunch of features about filewatcher

[AlexWayfer]

Also I created and pushed tags for old versions (0.5.0 – 0.5.4).

[AlexWayfer]

I thought about 1.0.0 release including the plugin system (#71). But it can be 1.x or 2.0 version (depending on backward-compatibility).

[thomasfl]

Good, it's about time. What should the new gem version be? The latest release 0.5.4 was pushed to rubygems.org last january.

[AlexWayfer]

So, there is small changelog:

• Markdown and code style improvements
• CI fixes and actualization
• Fix event names
• Rename dontwait option to immediate
• Add --every option (now changes is a Hash{filename => event} in watch block)
• Update and complete tests (including for JRuby and macOS)
• Rename FileWatcher to Filewatcher

I think, version number should be 0.10.0 (increasing the minor version by 5, as count of features, without tests, but including internal refactoring) or 0.6.0 (just "next").

Developers may choose to jump multiple minor versions at a time to indicate significant features have been added, but are not enough to warrant incrementing a major version number

Wikipedia.

[thomasfl]

I'd say it's about time to go for version number 1.0.0. There isn't any major changes in the code. However, all the small changes like "immediate" and "every" option, has so many breaking changes that a major version number increment is in place. The software is more than mature enough after 5 years for a version 1.0.0.

[thomasfl]

Yes, a plugin system can be introduced in version 2.0.0.