Fix for 655 issue

[ezimuel]

This PR fixes the #655 issue for MySQL. I removed the filter of null-bytes from quote() in Pdo\Abstract and I moved in MsSQL and Sqlite for ZF2015-08. This should remove the double quotes of null-bytes for MySQL. I provided this test for MySQL.
Waiting feedback from @Thomas-Gelf, @moshevds and others.

[moshevds]

I installed this fix on one of our servers and it seems to work. I only tested the MySQL changes because that's what we use. It was excepted to work as this effectively reverts the change that broke things. Thanks for the fix.

[Thomas-Gelf]

Same here, thanks @ezimuel! Been pretty busy at a customer this week, sorry for the late reply. As @moshevds already mentioned, the erroneous line has been removed so nothing else was to expect. Also good to see a test checking the expected outcome again. Honestly, I didn't run it - but it looks good to me. No MSSQL available right now, couldn't test it there. I could give PostreSQL a try if you want, but I have no doubt that also there the problem should be fixed.

Cheers,
Thomas

[ezimuel]

@Thomas-Gelf and @moshevds I tested also again SQLite and MSSQL to be sure that the previous patch ZF2015-08 works as expected. Everything seems to be ok so we can schedule a release this week, thanks!
/cc @weierophinney

[froschdesign]

@ezimuel
Thanks! 👍