* Remove outdated SF versions from testing

* Cache solr downloads

* Try to not hit apache.org for cache validation

* remove obsolete Autoloader implementation

* marked range query injection prevention as security fix

* added all integration tests to group "integration"

* removed deprecated classes. fixes #564

* remove hhvm tests on travis, use Solr 7.2.1

* remove obsolete Autoloader implementation

* marked range query injection prevention as security fix

* added all integration tests to group "integration"

* Escape the phrases in a range query.

In order to prevent query injection, the helper methods should escape
the phrases.  Otherwise you could end up with something like
rangeQuery('1', '2] someOtherField:[* TO *') and leak information, etc.

* Update changelog for escape-range changes.

* changed CHANGLOG format

* Enhancement: Reference phpunit.xsd

* Fix: Remove invalid configuration

* Added php-cs-fixer to Travis, applied fixes to Tests

* CS fixes on 'src/'

* Removed copyright from 'src/' folder

* Updated CS style fixes

* Updated travis-ci integration for PHP-CS

* Added StyleCI integration

* Updated git-attributes file

* Updated php-cs settings, keep sorted rules

* rename library folder to src

* updated changelog

* Require phpunit v6.5 and PHP v7

* Update tests to use TestCase

* Fix ClientTest tests

* Updated tests for phpunit v6.5

* Updated assertSame and removed copyright info from tests

* Fixed CS

* Removed php 5.6 from travis tests

* Added php 7.2 to travis

* Removed commented code

* Updated Readme

* Updated CHANGELOG

* Updated CS

* Updated tests and phpunit.dist{,.travis} (bootstrap.php is not needed anymore)

* Updated tests, removed unused coverage

finished first version of the Terms component and cleaned up some left overs from the component refactoring (#556)

Remove .idea

clean-up and phar support removal

Add gitattributes to exlude files from packaging (closes #548)

The "master" branch is now dedicated to solarium 4.x.
A new "3.x" branch was introduced to still maintain solarium 3.x (previously in master) with minimal bugfixes and security updates for some time, especially for people using older PHP or Solr versions.

* all components shpould be re-usable for custom query types and not be restricted for "select"

* cleaned-up QueryType\Select tests

* cleaned-up traits and introduced first interfaces to treat some components and query types indentically

* added a terms component

* fixed typos

Add a pagination example, see #521

The 3.x Suggester was in fact Spellcheck. the 4.x Suggester is a real Suggester now.

* run solr on travis

* use java 9

* fixed matrix

* added a first intergration test that select a result from the Solr techproducts example server

* added comment and dummy assertion to testPing()