Remove exact duplicates in the same file

Autotools: De-duplicate autom4te entry

Duplicate added amongst additions in e2caec17

Duplicate added amongst additions in de2539a7

This reverts commit 548fb984.

This reverts commit d878f045.

New template file for Backup file formats

[Typo3] assorted changes

Update JetBrains.gitignore.

Ignore parcel-bundler cache

allow .ssh directory

Added default annotation processing directory to Eclipse.gitignore

Matlab - Exclude coder temporary folders

Add exception for nuxt.js project build output

Ignore the .cache folder for LabVIEW projects

Trim trailing whitespace

Ignore usage statistics file

.idea/misc.xml used to contain usage statistics.  This was broken out to usage.statistics.xml in the latest EAP (2018.2 EAP).  It should be excluded from git.

See https://youtrack.jetbrains.com/issue/IDEA-192913

Update Dart.gitignore

Add ".serverless" to gitignore

updated according to https://www.dartlang.org/guides/libraries/private-files

Ignore Terraform crash log files

Add all Sass sourcemap file formats

Add Vuepress build defalult output Directory

Do not ignore launchsettings.json for VS

Ignoring `launchSettings.json` does not make much sense. Now .NET CLI even considers this file when running with `dotnet run`, as you can read [here](https://docs.microsoft.com/en-us/dotnet/core/tools/dotnet-run?tabs=netcore2x).

This settings will be useful if shared among project members, so it should be commited to the repo.

Also, on the default `.gitignore` file generated by Visual Studio it is not ignored, so this causes confusion, as depending on how `.gitignore` was created it could be commited in or not.

Add latexrun default directory for auxiliary files

Remove tfvars files from Terraform.gitignore