Support for Abandoned in Packages

Added parsing for abandoned property into the CompletePackage Object.
Abandoned support in `show`

Executing `composer show` on an abandoned package displays the warnings for package status.
Abandoned packages support

Added warning to the installer process.
If any installed packages are flagged, the user will get a warning at the end
of the install/update process.
PR Review

- reverted comma removal
- made getReplacementPackage consistent
- removed abandoned flag if false
Force the origin remote url to be the original one and not that of a mirror
Fix tests and run it before the push url updater
typo fix
Merge pull request #3394 from vlajos/typofixes-vlajos-20141104

typo fix
Add ignore-platform-reqs option to remove command
Add ignore-platform-reqs option to require command
Update require command's documentation
Update remove command's documentation
Issue #3422

https://github.com/composer/composer/issues/3422
Fixed the json formatting when using JSONC
Update SPDX licenses, fixes #3431
Restrict the JSONC fix to affected versions
Fix typo
Merge pull request #3432 from stof/patch-1

Fixed the json formatting when using JSONC
Merge pull request #3419 from olaurendeau/master

Add --ignore-platform-reqs for remove and require commands
Remove the handling of updates in the generator

Updates are implicitly handled by whatProvides for install requests