PSR2 adjustments for the PassHash class

I opted for ignoring the camel case funtion check not because the public hash_*
methods are widely used but because I find this style actually cleaner
in this

PSR2 adjustments for the PassHash class

I opted for ignoring the camel case funtion check not because the public hash_*
methods are widely used but because I find this style actually cleaner
in this case where the method name is auto-built from the hash type
name.

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add test for empty rev in ml() and wl()

Updated tests, removed hash

update common_ml test for hash change

Clean internal ids in ml(), that it matches with fetch.php
The resize token was broken because fetch.php cleans the id before the token calculation, while ml() uses the raw id

fixed test name

add some tests for ml()