add lab9
Merge branch 'master' of https://github.com/ga-students/DAT_SF_10
lec 9
syllabus to Misc
add class exercise
updated lab 9 with example for normalization using pandas
Merge branch 'master' of https://github.com/ga-students/DAT_SF_10
updates to solutions
added lab 10 on map reduce
Lec 10
clean up