Add first untested coding of texinfo and idutils build programs.
rename TOOL_DIR to PACKAGE_DIR
Rename tools directory to packages.
Rename tool to package in all files except for the packages/example-tool subdirectory which will be renamed next.
rename example-tool to example-package
Expound on the reasons for this package.
Rename builddep to BuildDependentPackage.
Correct detection of unset BUILD_DIR var
Qualify the paths to the .patch files.
Emit the current working directory in the assertion failure as an aid to debugging.
Ensure the cwd is in the checked out idutils directory prior to applying patches.
Fix patch file extraction logic.
Use shell redirection on patch command
Add testing output line
Correct usage leading line
rename build script for example-package
Remove the package name that was embedded in the basename of the build
scripts.  That was an artifact of the earlier idea of having all build
scripts in one single directory. With the new structure, each package
build scripts may have package-specific files (e.g., patch files) that
are better kept within a single directory.
Remove extraneous -update option
remove duplicated code
Debugging testing block.