added to  statement on setting lambda in section 4.2 a comment on what the default option is and a forward reference to Appendix A for instructions on how to do this.
Also changed from just mentioning lambda to mentioning all the new susy paramneters as we do this with them all.
merged the SLHA2 sub-appendix into appendix A as I think making it an extra subsection is excessive and spoils flow.
removed 'other' from 'supports the setting of all other SLHA2' comments.
 other did not seem to refer to anything even on the arxiv version.