Package should have download options
Package options must be passed as argument to downloader
Package options should be dumped if exists
Package options must be a non mandatory array and should be loaded when
exists
Repository options must be replicated on package when dist file is under
repository base dir
Improved the handling of trunkPath

- $this->baseUrl is only used if $this->trunkPath === false, otherwise
we will use $this->baseUrl with $this->trunkPath.
- scanning through trunkPath will now look for composer.json file
instead of a path that matches $this->trunkPath, beacuse checking
against the latter failed with deeper trunkPaths
- $this->rootIdentifier is now 'trunk' no matter how deep
$this->trunkPath is (with deeper trunkPaths, the name became something
like "dev-trunk-devel-team-packages-package"
Fixed a coding style issue

Missing a space between if and (
Add a warning for unbound constraints in the validating loader

Closes #2165
Added a new FAQ entry about unbound version constraints
Merge remote-tracking branch 'upstream/master'

Conflicts:
	src/Composer/Downloader/FileDownloader.php
Fixed an issue that would lead to scattered autoloading files
Resolves #2521. First and simple attempt to make a gzip downloader
There is no need in DIRECTORY_SEPARATOR since it Unix
Final fix. Preserve initial file name
Since there is no solution for non-unix (for now), remove the condition
Fix for #2739 (and #1755), added support for directory excludes in the .gitignore file like /directory or directory/
added an autoload-dev section
Fallback to gzip functions when on Windows
Updated the regexp and added more test cases.
Updated the regexp and added an other test case for sub dirs