Initial support of obsolete changesets
* Added `HGChangeset >> isObsolete` testing method
* Added `HGCHangeset >> successors` that returns immediaate
sucessors changesets
* Attempt to use an obsolete changeset would normally
throw `HGObsoleteChangeset`
@REM -------
@REM make using Borland bcc32
@REM type bmake, and wait...
@REM do not edit - automatically generated from ProjectDefinition
@REM -------
@SET DEFINES=
@REM Kludge got Mercurial, cannot be implemented in Borland make
@FOR /F "tokens=*" %%i in ('hg root') do SET HGROOT=%%i
@IF "%HGROOT%" NEQ "" SET DEFINES=%DEFINES% "-DHGROOT=%HGROOT%"
make.exe -N -f bc.mak %DEFINES% %*