* starting to port marketplace to piwik 3

* updating tests

* fix translation key

* fix various issues

* use material select

* fix plugin upload

* deprecate license_homepage plugin metadata and link to a LICENSE[.md|.txt] file if found (#10756)

* deprecate license_homepage plugin metadata, and link to a LICENSE[.md|.txt] file if found

* Make license view HTML only without menu

* fix tests and update

* fix some links did not work

* we need to show warnings even when plugin is installed, not only when activated. otherwise it is not clear why something is not downloadable

* fix install was not working

* improved responsiveness of marketplace

* fix more tests

* fix search was shown when only a few plugins are there

* fix ui tests

* fix some translations

* fix tests and remove duplicated test

* Enforce the Minimum PHP version in composer.json using "platform" feature
Added in https://github.com/composer/composer/commit/a57c51e8d78156612e49dec1c54d3184f260f144

It was found that this flag is very important to use to make sure the package we build and release will be compatible with this PHP version.
Otherwise, the minimum PHP version enforced would be the version where our build script runs, which could be PHP 5.5 or PHP 7 which would have caused serious issues.

* Update doctrine/cache, monolog,piwik/network, piwik/cache, piwik/php-tracker  etc.
https://github.com/piwik/piwik/issues/10058

* Release checklist to check that composer.json is correctly defined

* Use latest travis scripts for https://github.com/piwik/travis-scripts/commit/30d7b16940058a3dcea37dd7e7ed7241090bf57a

* .travis.yml file is out of date, auto-updating .travis.yml file.

* Use latest travis scripts for https://github.com/piwik/travis-scripts/commit/63445cf4a53e6e115a31ecacd79327dc5bfb2494

* .travis.yml file is out of date, auto-updating .travis.yml file.

Update piwik/network component to 0.2.0 release for IPv6 ranges support https://github.com/piwik/piwik/issues/9411 (#10324)

add possibility to view config values, including description, default value and whether it is an adjusted config value in the ui

refs #9095 Package tecnick.com/tcpdf is abandoned

Force requiring a version 2.6.* of Symfony packages because the 2.7.* versions require PHP >= 5.3.9 (we support PHP 5.3.3)

Force requiring a version 2.6.* of Symfony packages because the 2.7.* versions require PHP >= 5.3.9 (we support PHP 5.3.3)

Force requiring a version 2.6.* of Symfony packages because the 2.7.* versions require PHP >= 5.3.9 (we support PHP 5.3.3)

It seems composer still installs it though, might be required by another package…

See https://github.com/leafo/lessphp/issues/302 and http://stackoverflow.com/questions/15426256/override-less-variables

PEAR is installed through Composer with the latest version of piwik/decompress anyway. I've removed it from the libs folder after comparing the files. `is_a()` is not deprecated anymore, and I couldn't find any usage of the modified methods `raiseError()` and `isError()` in HTML_Quickform.

I had to require pear/pear-core-minimal on top of pear/pear_exception because there is no transitive dependency. I have opened https://github.com/pear/PEAR_Exception/issues/8

Use latest doctrine/cache including file cache edge cases fixes. Add the alias repo to piwik composer.json so composer update will fetch this code.

The event dispatcher is needed for the Monolog Bridge