MySQL fixes/additions/improvements

- fixed GH #187: MySQL: allow access to the underlying connection handle
- added GH #186: MySQL: support for MYSQL_SECURE_AUTH
- fixed GH #174: MySQL: 4GB allocated when reading any largetext or
largeblob field
WinCE fixes for zlib 1.2.8
fix MySQLTest info calls
updated version to 1.5.2
Solaris build
Merge .gitattributes changes from develop branch
fixed text files
fixed line endings
fixed line endings
fixed README
removed no longer needed files
fixed .gitignore for .unsuccessfulbuild
added ListMap

ListMap is a map that does not order elements; used in
NameValueCollection to prevent reordering of message headers
Add pthread_setname_np in Thread_POSIX. User can enable this with -DPOCO_POSIX_DEBUGGER_THREAD_NAMES.
added Token::asInteger64(); ODBC tests fix for case-sensitive DB
Merge branch 'develop' of https://github.com/pocoproject/poco into develop
remove unecessary toLower()

make SessionFactory map keys case insensitive nad remove unnecessary
toLower() calls
remove bad char at file beginning
update version numbers
replaced spaces with tab