Created folder structure for test data.

--HG--
rename : spec/sample/includes/include.axi => spec/data/src_package/includes/include.axi
rename : spec/sample/project.axs => spec/data/src_package/project.axs
Added raketask ignore todo.
Split pack/unpack into separate tests.

--HG--
rename : spec/data/src_package/includes/include.axi => spec/data/src_package/pack/includes/include.axi
rename : spec/data/src_package/project.apw => spec/data/src_package/pack/project.apw
rename : spec/data/src_package/project.axs => spec/data/src_package/pack/project.axs
Implemented unpack spec.

--HG--
rename : spec/data/src_package/unpack/sample.src.zip => spec/data/src_package/unpack/sample.src
Reorganized ".src package" spec group.
Added #copy_to_zip and #remove_zip.
Updated gemspec.
Included folders in zip elements.
Implemented unpacking to subdirectory.
Moved deletion of extracted test files to around block.
Implemented zip file spec.
Moved classic mode spec.
Merge