Fix preg_match comparison in MySQL and SQLite adapters, add tests, fixes #419
unit tests mydql
safe state for unit test
current tests moved to functional folder
addcolumn test
hastable and renamecolumn tests
unit tests for mysql adapter
classifytext tests and getphinxtype
getphinxtype with limits and errors
key related tests
unit tests mydql
safe state for unit test
addcolumn test
hastable and renamecolumn tests
unit tests for mysql adapter
classifytext tests and getphinxtype
getphinxtype with limits and errors
key related tests
foreign keys tests + disconnect
Merge branch 'unit-testing' of https://github.com/trilopin/phinx into unit-testing

Conflicts:
	tests/unit/Phinx/Db/Adapter/MysqlAdapterTest.php