Improvements: 

 * `.terraform` directories could be created in any subdirectory when user runs `terraform init`.
 * Quite an interesting variations of`.tfstate` files are created by Terraform such as `.*.tfstate.d` or  `.*.tfstate.lock.info`. It's best not to name any file with `*.tfstate.*` pattern.
 * `*.tfvars` files often contain private data and not supposed to be committed.

Windows.gitignore - Change desktop.ini to [Dd]esktop.ini

Ignore Nuget package directory name casing

It looks like VS2017 changed it's nuget package directory name to be capitalized.
When using Ubuntu for Windows, directory name casing of NuGet package folder becomes important and detected as a change by git,. This change is to ignore regardless of casing.

Fixed typos in README.md

There were just a couple of typos in the README that I fixed.

Commenting out Android keystore files

Android keystore files are critical and losing them is destructive.

They should be commented out by default, the user should explicitly uncomment their line if they intend not to include them into their repository.

Add exclusion of Visual Studio trace files (*.e2e)

updated static and media files in django section

Update Autotools.gitignore

add files generated by the autotool m4.

Update OCaml.gitignore

Merlin is a code completion for OCaml in Vim and Emacs. Such configuraing file is common

Fix failure to ignore Simulink autosave files

Remove double-spaced lines

`.autosave` does not match the name of autosave file generated by
simulink. A leading asterisk(*) is needed to match such name.

Add exclusion for OpenCover UI results

ignore logs on /administrator/logs/*

clarifying when ignoring is not required

Add names of backup folders created by terrarium

add MANIFEST to Python.gitignore

Add extended DVI (XDV) to TeX.gitignore

Updates Elixir gitignore file

Added link to source

Update Terraform.gitignore - ignore terraform.tfvars

.DS_Store is a file name, not an extension

Adds some files

Node - update Compiled binary addons link to https

Node.gitignore build/Release Compiled binary addons: http to https
https://nodejs.org/api/addons.html

Nanoc: Ignore tmp/nanoc/, not tmp/

Updating Swift.gitignore with Package.resolved

Add default file, README in libraries and translations in Drupal