add downloads/ in Distribution / packaging
PyInstaller .manifest

# PyInstaller
#  Usually these files are written by a python script from a template
#  before PyInstaller builds the exe, so as to inject date/other infos
into it.
*.exe.manifest
*.manifest

Example template
```
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<assembly xmlns="urn:schemas-microsoft-com:asm.v1"
manifestVersion="1.0">
<assemblyIdentity
type="win32"
name="SourceCoder"
version="14.2.22.0"
processorArchitecture="x86"
/>
<description>Description</description>
<trustInfo xmlns="urn:schemas-microsoft-com:asm.v3">
<security>
<requestedPrivileges>
<requestedExecutionLevel level="asInvoker" uiAccess="false" />
</requestedPrivileges>
</security>
</trustInfo>
<dependency>
<dependentAssembly>
<assemblyIdentity
type="win32"
name="Microsoft.Windows.Common-Controls"
version="6.0.0.0"
processorArchitecture="x86"
publicKeyToken="6595b64144ccf1df"
language="*"
/>
</dependentAssembly>
</dependency>
<dependency>
<dependentAssembly>
<assemblyIdentity
type="win32"
name="Microsoft.VC90.CRT"
version="9.0.21022.8"
processorArchitecture="x86"
publicKeyToken="1fc8b3b9a1e18e3b"
/>
</dependentAssembly>
</dependency>
</assembly>
```
.spec files also
remove .exe.manifest ; Redundant
ExtJS JavaScript Framework gitignore

Added gitignore for Sencha ExtJS, a complete web app framework
http://www.sencha.com/products/extjs/
Update and rename ExtJS.gitignore to ExtJS MVC.gitignore
ExtJS ignore Updated with a cleaner explanation.
Added Zephir language gitignore
Fix URL in SBT template
Ignore locally-built `*.nupkg` files

Building NuGet packages locally with `NuGet.exe pack <name>.nuspec` generates a `<name>.<version>.nupkg` file which should never be versioned.
Mercury.gitignore: Add Erlang .beams, as this is an
additional compiler target, forgot to add this in
https://github.com/github/gitignore/pull/1057
Added .gitignore for Ninja build system dependency-cache and log.
Ignore phpunit.xml in Symfony2 applications
Merge pull request #1078 from jamesottaway/patch-1

Ignore locally-built `*.nupkg` files
Merge pull request #1079 from sebgod/mercury-add-beams

Mercury.gitignore: Add Erlang .beams,
Merge pull request #1085 from giosh94mhz/symfony2_ignore_phpunit_xml

Ignore phpunit.xml in Symfony2 applications
Merge pull request #1069 from github/sbt

[Global/SBT] Fix documentation URL
Replace app/bootstrap wildcard with explicit entry

See https://github.com/symfony/symfony-standard/commit/e7b7b0f366465b15a29f44d7ba17287bb0b8392b
Ignore bin folder
Add leading slashes