v2.1.2 fix isReliable() bug

Update LanguageResult.php

v3.0.0-BETA

Changes from ELD v2 to v3-beta:

• detect()->language now returns string 'und' for undetermined instead of NULL
• Databases are not compatible, and bigger, medium v2 ≈ small v3
• dynamicLangSubset() function is removed
• Function cleanText() is now named enableTextCleanup()

v2.1.1 Create .gitattributes

Remove files in tests/ misc/ and benchmark/ from the installation when installing the library via composer install --prefer-dist

v2.1.0 Added info function

Added info() function

v2.0.0 Return type changed

Return type changed from array to object. Upgraded from PHP 7.3 to 7.4

v1.0.3 Code improvements.

Code improvements. Fixed LanguageDetector file name.