[TYPO3-core] RFC #16559: Tweak: Ugly errors in install tool

[Kevin Walter]

This is an SVN patch request.

Type: Bugfix

Bugtracker references:
http://bugs.typo3.org/view.php?id=16559

Branches:
trunk

Problem:
There are some really ugly errors in the install tool, that just give a die.
its about the following errors: 

if the localconf does not contain a install tool password, it results in a die
if the typo3temp/ folder is not writeable it results in a die

i have fixed that with the code as attachment

Solution:
In stead of calling a die, i called the function: outputErrorAndExit

Yours Sincerely
Kevin Walter
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