created base transaction script class and implemented ostruct, created s...

...spec helper file and shared spec for transaction script inherited classes to use.
added some development gems
created the base tscript class and created specs for the base class
completed tscripts base
added comments to tscript class, implemented ostruct
changes to the transaction script specs
passes all tests, writing notes now
refactored transactionscript spec to be modular and to be used in all other transactio script specs
passes all tests, writing notes now
Update spec_helper.rb