v1.4.2

Patch update to remove a broken pull request - may have consequences for users of 1.4.0 and 1.4.1 that exploited the "find_many() now returns an associative array with the databases primary ID as the array keys" change that was merged in 1.4.0.

• Back out pull request/issue #133 as it breaks backwards compatibility in previously unexpected ways (see Idiorm issues #162, #156 and #133) - sorry for merging this change into Paris - closes Idiorm issue 156