[!!!][BUGFIX] Fix usage of issueCommand() and T3_THIS_LOCATION

Multiple usages of T3_THIS_LOCATION are removed as its usage
make only sense in JavaScript context.

issueCommand() takes care of properly quoting the URL when
using in JavaScript context.

Resolves: #66707
Releases: master
Change-Id: Ib0e89e9657fc83bd6514a2077013926f24434a37
Reviewed-on: http://review.typo3.org/39158


Reviewed-by: Wouter Wolters <typo3@wouterwolters.nl>
Tested-by: Wouter Wolters <typo3@wouterwolters.nl>
Reviewed-by: Helmut Hummel <helmut.hummel@typo3.org>
Tested-by: Helmut Hummel <helmut.hummel@typo3.org>