Updated the Inno Setup GUI Windows installer script in order to allow full installation by non-admin users (better messages for non-admin users when the Logtalk base system is already installed).
Updated the Inno Setup GUI Windows installer script in order to allow full installation by non-admin users (better messages for non-admin users when the Logtalk base system is already installed).

git-svn-id: 4c7b768bc2e2a56aa1c56b1b5a9454ba68342430@6306 ac9c905b-388a-4ddf-9b6a-4063a022bc57

LogtalkDotOrg/logtalk2,LogtalkDotOrg/logtalk2,LogtalkDotOrg/logtalk2,LogtalkDotOrg/logtalk2,LogtalkDotOrg/logtalk2