Drastically simplify .gitignore for Dart

Add Cursive's REPL history file

**Reasons for making this change:**

The file `replstate.xml` contains the history of the Clojure REPL
that Cursive adds to IntelliJ. Obviously that's user-specific,
and not relevant to other users.

**Links to documentation supporting these rule changes:**

This file is not well-documented, but in cursive-ide/cursive#1325,
the Cursive developers state that this is the REPL history file,
and that deleting it is acceptable troubleshooting if it's
causing trouble.

remove extra line

Our typical workflow has JS and related build outputs in the `build` directory.

Most users are on new SDKs, so we don't have to worry about these ignores.
Most users don't generate docs locally. If they do, it's easy to add the entry to their .gitignore later.

Remove Composer's file and directory from Symfony.

Added BizTalk build output files to ignore list

TeX: remove duplicates

Added Telerik's JustMock configruation files

Added /project/project to PlayFramework.gitignore

https://www.playframework.com/documentation/2.5.x/Anatomy

[Python Gitignore] Ignore Sage's parsed files

Ignore Sage's parsed files (*.sage.py) that are left after running a .Sage program.

Ignore dictionaries to reflect docs

[Eclipse] Add excludes kept in Scala.gitignore .

[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.

Scala.gitignore currently has more entries for Eclipse than Eclipse.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