Fixed issue #1549
Merge pull request #1550 from umpirsky/fix/issue-1549

Fixed issue #1549
Removed unused variables
Added use of handleRequest method

Added use of handleRequest method
Merge pull request #1553 from saro0h/remove-unused-variables

Removed unused variables.
Merge pull request #1555 from saro0h/use-handle-request

Added use of handleRequest method.
Removed unused use statements

Removed unused use statements

Removed unused use statements
Make cart actions RESTful.
Merge pull request #1557 from kayue/patch-19

Make cart actions RESTful.
Merge pull request #1554 from saro0h/removed-unused-use-statements

Removed unused use statements.