Added new tests.
Due to support zts broke the ability to run tests without installation - fixed.
in test.sh added option -t
in the script tests/test.sh added option -t (the full list of options, see ./test.sh -h) - allows you to run individual tests
For example:
`./test.sh -t "php/phpt/variables/010-value-object2.phpt php/phpt/base/001.phpt"`
`./test.sh -nt php/phpt/variables/010-value-object2.phpt`
see diff
Minor changes to allow the use to tests and extension `.phpt-`
Merge pull request #54 from valmat/tests1

Added new tests.
Fix test value-casting-operators
add test: 007-Iterate-internal-array.phpt
Iterate internal array
add test variables/005-cast-objects-to-scalars.phpt
add test: class_obj/003-comparable.phpt
add test: 004-static-funct.phpt (Test class with static function)
Changed the structure of the test file. With the increasing number of tests the old structure became uncomfortable.
add new tests: Test call function
add test: 018-calling-php-functions
new test: Test class with static property and class constant
Fixed test: variables/003-value-types
Merge pull request #56 from valmat/tests

New tests
activated all tests, and slightly modified one test which has wrong expected output in the test script
all methods to register functions, methods, properties and classes not return *this, to allow chaining these methods. This was suggested by valmat in issue #55
fixed broken texts because of wrong return value of many chaining methods in Class.h
conflicting forward declaration fixed (issue #60)