fix logicalAnd, logicalOr, logicalXor

logicalAnd/logicalOr/logicalXor functions doesn't work
in shortcut functions at Framework/Assert/Functions.php.

fixed this bug and added tests.
Merge pull request #883 from kuzuha/bugfix/assert_functions_for_3.7

fix logicalAnd, logicalOr, logicalXor
Refs #883

 * Added changelog entry for #883.
 * Updated `assertions.php` build script to account for functions that accept variable-length argument lists.
 * Rebuilt `Functions.php`.
Merge branch '3.7'