added installer script plus INSTALL instructions
better integration of nsis installer on deployment
running deployment including installer
first running installer changes in ilwiscontext.cpp due to adding group 'PATH' to ilwisobjects.config
more intelligent checks and verifications
ILWIS Installer: better deleting, PATH environment manipulation, changed  name, Python version check, qt deployment
added python333.msi download link and changed to PATH of HKLM instead of HKCU
firstattempt to error prone installer strcipt fighting againth strlen limitsin PATH environment
sove for exceeding stringlenths
final tested PATH handling (removed) x64 case, because windows doesnt seem to have a limit anymore
added convenience via registrykeys for default pathes on reinstall and from Python install key
Merge remote-tracking branch 'origin/master'
Merge branch 'v1.0-alpha2'
after merging fixes