Removing quotes from the start and end of IDs.

This commit fixes #25.

OPEN - task 25: YSmart does not parse queries if column name contain
properly quoted keywords 
See #25: http://github.com/meisam/YSmart/issues/issue/25
Double quoting UID in a test case because UID is a keyword in PL/SQL

For more information see #25.

OPEN - task 25: YSmart does not parse queries if column name contain
properly quoted keywords 
See #25: http://github.com/meisam/YSmart/issues/issue/25
Changing the expected output of some test cases after fix for #25.

Now we expect the value that is returned by YSmart parser for IDs is not
quoted.

OPEN - task 25: YSmart does not parse queries if column name contain
properly quoted keywords 
See #25: http://github.com/meisam/YSmart/issues/issue/25
Adding back test cases for reserved words in SQL after fixing #25.

Now YSMart can successfully pass these two test cases.

OPEN - task 25: YSmart does not parse queries if column name contain
properly quoted keywords 
See #25: http://github.com/meisam/YSmart/issues/issue/25