JetBrains: Optional excludes for auto-import

Update Swift.gitignore

Update Objective-C.gitignore

Adding a comment in case one wants to ignore .xcworkspace

Adding a comment in case one wants to ignore .xcworkspace

Add extra commented section to use when using Gradle or Maven auto-import.
These are mentioned in the original reference for optional excludes (https://intellij-support.jetbrains.com/hc/en-us/articles/206544839).
If this would be better as a separate, non-commented ignore file, let me know and I will resubmit.

update Craft CMS gitignore to follow Craft team's recommendations

A new template for Perl 6

maven-wrapper.jar can be removed from the source

Updated for Codekit 3

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