Adjust the structure.
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Add testing mechanism.
Change directory name
Revert "Change directory name"

This reverts commit 483ea9ba91b3ded500c76eafb5b535cc31c1fe2d.
EpochalSitesData
First try with testing code.
Do I really need testing code?
Add G and displacement
.
.
.
Merge branch 'adjust_epochal_data' of gipsy1:/home/zy/workspace/viscojapan into adjust_epochal_data
testing
Merge branch 'adjust_epochal_data' of gipsy1:/home/zy/workspace/viscojapan into adjust_epochal_data