Updating Swift.gitignore with Package.resolved

Add default file, README in libraries and translations in Drupal

Add QML and JS cache files to Qt.gitignore

Add gitignore for Kotlin

'*.tfstate.*.backup' added to Terraform.gitignore

Adds .gitignore rules for AxoCover

AxoCover is a Code Coverage Tool. It creates a **.axoCover** folder where are created:
- settings in settings.json
- sub-folders into **run** folder which contain code coverage results.

All content into **.axoCover** folder must be ignored except the **settings.json** file.

Fix comments on same line causing ignore to break

Symfony.gitignore: add web server pid file

Since Symfony 3.3, WebServerBundle creates a `.web-server-pid` file when embedded server is running.
Official blog post: http://symfony.com/blog/new-in-symfony-3-3-webserverbundle

Remove TODO from VS.gitignore

Updated Smalltalk.gitignore

JetBrains: out/ ignored recursively

fix Prestashop.gitignore error

Ignore .ghc.environment.*

Add Tabs Studio files to VisualStudio.gitignore

Adds BenchmarkDotNet.Artifacts to VisualStudio.gitignore

Optionally add log files to Vagrant and improve file's comments

Fix capitalization and spacing of comments

Create .gitignore rules for JEnv

Qt unit tests

Consolidate all environments in one section

Some of these names relate to specific tools, others could be used by multiple tools. In particular, virtualenv, the most popular tool for creating Python environments, does not mandate any of these and venv/ or .venv are simply conventional. It is more readable to group all of these together.