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
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