Added some missing global declarations.

Fixed confusing variable naming in "add to cart" closure; increased efficiency by leaving the function as soon as a duplicate is found.

jslint style fixes: added global declarations and reordered functions so that declarations precede calls.

Cleaned up whitespace; moved document ready function to end of file for jslint compliance (avoid undefined function errors).

jslint style fixes (global directive for path variable defined externally; put function definition before call to that function for clarity).

Removed incomplete/outdated cart logic -- these are old relics of an early implementation of the cart; if we want mobile cart support, we should reimplement based on the current blueprint theme.

Adjusted getDriverConfig() to use ConfigReader instead of parse_ini_file() in order to take advantage of [Parent_Config], etc.

Added corresponding unit tests.

Catch more exceptions when checking for security problems -- otherwise a missing database causes a fatal error on Install/Home and prevents generation of database.

Eliminated Aleph driver dependency on service locator; added exception when X-server request is made without proper configuration.