Fixed 5 GCC warnings


git-svn-id: https://svn.code.sf.net/p/nsis/code/NSIS/trunk@6502 212acab6-be3b-0410-9dea-997c60f758d6
Fixed STD_MIN/MAX again for VCToolkit2003: SDK2003R2/CL14.00.40310.41 defines _MAX as _cpp_max and _cpp_max is a template under std. VCToolkit2003/CL13.10.3052 has a template _MAX under std but also does "#define _MAX (max)" so we cannot use "std::_MAX" and have to rely on the "(std::max)" trick.


git-svn-id: https://svn.code.sf.net/p/nsis/code/NSIS/trunk@6503 212acab6-be3b-0410-9dea-997c60f758d6