various files: replace calls to pgp_log_memory_use() with...

various files: replace calls to pgp_log_memory_use() with coder_upgrade_memory_print(); coder_upgrade.module: #982380: correct coder_upgrade_parameters_save() to use module directory instead of files directory, enhance coder_upgrade_conversions_apply() to capture errors and return code; coder_upgrade.main.inc: refactor print routines to use coder_upgrade_path_print(); coder_upgrade.run.php: enhance documentation; coder_upgrade.test: refactor getInfo() routines; tests/samples directory: update the input and expected test file: example.module.