Merged Arif's and Yikang's code, bug fix
Added main function
Merge branch 'develop'
merge_orderly added
change 'base' to 'source'
rename base to source
Added experiment for section 2.2
Merge branch 'develop'
Update experiment 2 code
Merge branch 'develop'
fixed R and t
ICP updated
ICP checked to be right,
merge algorithm 1 implemented
Finish code for experiment 2.2
Merge branch 'develop'
experiment 2.1, test on every 1st, 2nd, 4th and 10th.
kdtree based on merged cloud
plot with point instead of circle
Added experiment 2 results
Merge branch 'develop'

Conflicts:
	ICP/src/experiment2.m