Fix warnings from arithchk
working towards KF handling funs
Merge branch 'kalman' of git://github.com/fnoble/libswiftnav into kalman
Merge branch 'lapack' of git://github.com/fnoble/libswiftnav into kalman
adding/dropping ref sat functionality underway
stupid filter is stupid
added git tracking to managamengt stuff
Small fixes to stupid filter and supporting functions, working on zero baseline but not on the antenna tree baseline.