instanceof classname obfuscation support added

issue #15 fix.

minor bug fixes

added $GLOBALS for reserved variable names
changed check mode form isset to array_key_exists because some keys had null values ( uppercase NULL as an example)

added --whatis command line option

1.8.6

added --whatis command line option

issue #11 fix

1.8.0 incomplete changes...

issues #10 and #12 fixes

Changed shebang from #!/usr/bin/php to #!/usr/bin/env php.
Changed yakpro-po.php execute mode within github.
Fixed Catch block class names are not scrambled #12

issue #9 fix

workaround for prettyprinter when empty php file

issue #8 fix

1.8.2

Update version.php

typo fixes

1.8.1

Update version.php

new behaviour: detects and ignore pre-defined classes, class constants, properties, methods

New config file $conf->t_ignore_pre_defined_classes element, replacing the old $conf->t_ignore_module_methods.
see config.cnf for more details

Ignore pre-defined classes, class constants, properties, methods.
if a use statement is present, do not shuffle statements that are located before the last use statement.
namespaces and classes are now sharing the same obfuscation context in order to be alias compliant.

Updated Check for PHP Parser 1.x branch to be relative

"Check for PHP Parser 1.x branch" now works when yakpro-po is not the current working directory.
minor regression fix for --help option.