Removed unused files.
Updated tests to be sematically correct.
Added more semantic tests.
# Please enter the commit message for your changes. Lines starting
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# On branch master
# Changes to be committed:
#	modified:   Makefile
#	deleted:    bytecode.ml
#	deleted:    compile.ml
#	deleted:    execute.ml
#	modified:   geocode.ml
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#	modified:   tests/Semantics/test-1.geo
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#	modified:   tests/Syntax/test-5.geo
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#	modified:   tests/Syntax/test-7.geo
#	modified:   utility.ml
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