[Scala] remove external tools excludes.

[SBT] Add some excludes kept in Scala.gitignore .

Scala.gitignore currently has more entries for SBT than SBT.gitignore itself.
Copy missing entries here.

Remove excludes for SBT, Eclipse and ENSIME. They'll be added to appropriate
Global/ gitignore files.

[Scala] exclude Scala IDE related .cache-main .

Update TeX.gitignore

minitoc also generates .stc, .slf, and .slt files

updated link to fastlane docs

[Maven] fix comment

Add comment for Java .class files

Fix spelling

Add missing space for the last comment

fix(Node): ignore yarn logs

This adds ignores for the `yarn-debug.log*` and `yarn-error.log*` files sometimes produced by the [Yarn package manager](https://yarnpkg.com).

Ignoring more generated file for Java project

Codeigniter 3 support

[Node/VisualStudio] ignore typings directory

Added .gitignore for PureScript

Ignore ensime files

Add an explanation to reduce PHP framework clutter

[Magento] basic files that must be ignored

[Global/JetBrains] add support for Rider and nested projects

[Python] add .venv as file

[Go] Update ignore patterns.

[Node] make directory rules explicit

Unity: ignore Visual Studio 2015 cache directory

Since the version 5.2, Unity has used Visual Studio 2015 instead of MonoDevelop as default script editor in Windows.
This change may be helpful for Unity developers who use the recent version of Unity in Windows.