1. rename the tool to lodownloadtest.py
2. it will call native losmoketest in lo program directory
3. it will download test package as well as lo installables
4. fixing some bugs and optimize code
    - clean up extracted rpms after install
    - only uninstall necessary packages before installation
    - trivial improvements please see diff

so pesky warnings about invalid property values on shutdown go away

Rather check iterator validity *before* accessing it. valgrind
warning on linux, and crash on windows for e.g. doc at n#736495.

As Asa Dotzler kindly pointed out in his blog, it was a bit
awkward to put Base - the less used application - into
frequently used program icon area of Windows 7 start menu. It was
not a design decision, Sbase preceded Soffice, that was all.
Let's use LibreOffice instead of Soffice, and voilà, problem solved.

works only on 64 bit platforms, though.

* remove 'const' from GetForbiddenCharacters
* CharInfoMap -> Map
* pInf -> pForbiddenCharacters
* remove 'inline' from the function defined within the class definition
* some code simplifications

seeing as Z_PREFIX is what we set in our internal zlib
and one of these was ZLIB_PREFIXB anyway

While I try to wrap head around subtleties for linked undo in
Impress outline view, disable that here for the while. Better than
a crash for sure.

Added:
* rtl::OString::matchL
* rtl::OString::endsWith
* rtl::OString::endsWithL
* rtl::OString::indexOfL
* rtl::OString::replaceFirst
* rtl::OString::replaceAll
* rtl::OString::getToken
* rtl::OUString::endsWith
* rtl::OUString::replaceFirst
* rtl::OUString::replaceFirstAsciiL
* rtl::OUString::replaceFirstAsciiLAsciiL
* rtl::OUString::replaceAll
* rtl::OUString::replaceAllAsciiL
* rtl::OUString::replaceAllAsciiLAsciiL
* rtl::OUString::getToken
plus underlying C functions where necessary

Deprecated:
* comphelper::string::remove
* comphelper::string::getToken

Removed:
* comphelper::string::searchAndReplaceAsciiL
* comphelper::string::searchAndReplaceAllAsciiWithAscii
* comphelper::string::searchAndReplaceAsciiI
* comphelper::string::replace
* comphelper::string::matchL
* comphelper::string::matchIgnoreAsciiCaseL
* comphelper::string::indexOfL

Also fixed some apparent misuses of RTL_CONSTASCII_USTRINGPARAM ->
RTL_CONSTASCII_STRINGPARAM.