Add some extra type checks on names (phpdotenv#351)

Fixed detection of closing multiline-quotes (phpdotenv#342)

Fixed parsing regressions (phpdotenv#339)

Fixed parsing regressions (phpdotenv#338)

Merge pull request phpdotenv#325 from vlucas/parser-backport

[2.6] Backport parser fixes from 3.3.0

Rewrite parser and fix escaped quotes in multiline values (phpdotenv#322

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Merge pull request phpdotenv#321 from GrahamCampbell/direct-load

Support direct loading with a string

Allow DotenvFactory to accept an empty array of adapters (phpdotenv#320)

Apply fixes from StyleCI (phpdotenv#317)

Refactored parser and validate names (phpdotenv#311)