instl version 0.9.8 - merged form branch shai
* wtar command checks if tared files should be executable and adjust. it's permissions.
* New method InstlItem.all_action_list, returns a list of all actions for an item (before, after, folder_in, folder_out, copy_in, copy_out) intended so the total number of actions for item can be known.
* New methods for InstlAdmin: is_file_exec, should_file_be_exec to deal with executable bits in the staging folder.
* New line after each folder in copy operations.
* No redundant cd to folder that has not actions for non copying items.
* Removed unused methods of InstlInstanceSync_url: create_unwtar_instructions_for_item, create_checksum_instructions_for_item, these already have their own instl command.
* When unwtaring, date of .done ifle is compared not only it's existance.
* New platformHelper method chmod: implemented for Linux and Mac only. make_executable is now implemented using chmod.