Added the new upload directories and ignore the cache directory completely.

With SugarCRM 6.4 the `cache/upload` directory moved to `upload` and
`upload_backup`. These directories can safely be ignored.

Additionally the `cache` directory is now ignored completely because it
leads to the behaviour to use the git repository as a kind of backup
tool if several parts of it are included. Furthermore the directory
structure beneath `cache` is victim of enduring changes by the
developers.

I did also some code cleanup regarding the path names e.g. adding a `/`
before most file and directory names.
Adapted the ignored directories to use `dir/` instead of `dir/*`
Explanations for ignoring the cache directory

I wrote a more explanatory comment regarding the cache directory
and why it is ignored.
added node_modules
Update to Magento 1.8.x
Added SCons.gitignore
Add "dist" and ".cache" folders for Play 2.2.x
Link: http://www.playframework.com/documentation/2.2.x/Anatomy
Add output directory of sbteclipse plugin,
which is ".target" directory.
Ignore grunt and lcov build files in Node projects
also ignore sensitive configuration data
fixed handling of nuget packages
Update Cloud9.gitignore

The next version of Cloud9 will use a top-level .c9 folder in the workspace for settings and metadata.
Merge pull request #840 from jan0sch/SugarCRM

Added the new upload directories and ignore the cache directory completely
Merge pull request #883 from richorama/master

added node_modules
Merge pull request #893 from dng-dev/patch-1

Update to Magento 1.8.x
Merge pull request #899 from andrewwutw/master

Added SCons.gitignore
Merge pull request #905 from arinto/new-ignore-in-play-2.2.x

Add "dist" and ".cache" folders for Play 2.2.x
Merge pull request #906 from arinto/new-ignore-for-Eclipse-SBT

Add output directory of sbteclipse plugin, which is ".target" directory.
Merge pull request #907 from pimterry/nodeGitignore

Ignore grunt and lcov build files in Node projects
Merge pull request #909 from Stijn-Flipper/wordpress-fix

Ignore sensitive data