* Removes TNT Unicode controls, which are no longer required. All VCL controls now have native Unicode support.
* Remove Delphi 11 packages, otherwise we would either need to keep TNT or break Unicode
* PngComponents update from Uwe Raabe on http://cc.embarcadero.com/Item/26127
* Adjust auto build process
* Since Delphi 2009, Strings are now UnicodeStrings, not AnsiStrings any longer. Fix a bunch of compiler errors which came along with this change.
TODO: Project should compile but give tons of compiler warnings.
* Move const.inc and compilers.inc back to main source directory
* Move remaining few lines of code from heidicomp.pas to helpers.pas
* Remove components/compilerdetection and components/heidisql
* Remove remainders of EDBImage component, unused since Aug 08.
Range and overflow checking can be turned off when building a release exe to improve performance slightly.
Debugging options can be turned off when building a release exe to reduce the executable file size.
* Move binary resource files into "resources" subfolder.
* Get rid of recently introduced source folders in project search paths.
* Get rid of yet another compilers.inc.
* Get rid of a couple of empty (aside from application main icon and a version=1.0.0.0 string) .res files, and instruct svn to ignore these.
* Build projects as 'debug' per default. (todo: add source folder to 'debug search path' for various projects.)
Left for later:
- Creating .bdsproj files for both packages VirtualTrees.dpk and VirtualTreesD.dpk .
- Adding these bdsproj files to the D10 superpackage
