removed composer download
Attempt user/pass authentication for git repos not on github
Store http auth creds by domain only
Look for Auth failed anywhere in errorOutput
Capture user/pass from 'git remote' when updating non github repo
Document platform packages, closes #618
Link to the aliases article from schema and repositories docs

Closes #1179.
Consistently describe composer as dep mgr as opposed to package mgr

Closes #1207.
Replace references of a11n with a12n where appropriate

Authorization => Authentication.
Replace nl2.php.net link with plain php.net one
BitBucket private repo
Uppercase first character of dump-autoload description
Merge pull request #1301 from igorw/dump-autoload-description-ucfirst

Uppercase first character of dump-autoload description
Merge pull request #1293 from igorw/authentication-instead-of-authorization

Replace references of a11n with a12n where appropriate
Merge pull request #1294 from igorw/phpnet-link

Replace nl2.php.net link with plain php.net one
Merge pull request #1291 from igorw/inline-alias-doc

Link to the aliases article from schema and repositories docs
Merge pull request #1290 from igorw/platform-package-doc

Document platform packages, closes #618
Add InvalidRepositoryException
Merge remote-tracking branch 'igorw/dep-manager-consistent-naming'
Also fix the headline of the README