Merge pull request #68 from krauswg/master

additional parameter for sif, in conjunction with kuleszdl/SIFEI#57
Update INSTALL

Added link to build info
Update INSTALL

Force line breaks in INSTALL doc
Update INSTALL

Refined install manual, some important details were not clearly stated.
fixed #69
Merge pull request #70 from tothfn/69

fixed #69
Updated the xml parsing according to the changes in sif
Merge remote-tracking branch 'upstream/master'