Merge pull request IvorySQL#673 from jiaoshuntian/IVORY_REL_3_STABLE

Modify the version number to be 3.3

Merge pull request IvorySQL#650 from bigplaice/modify_the_version_to_3.2

Modify the version number to be 3.2

Modify the version number to be 3.1

Stamp IvorySQL 3.0

Stamp IvorySQL 3.0 beta

Stamp IvorySQL 2.3

Merge pull request IvorySQL#196 from wangjie-star/IVORY_REL_2_STABLE_2_2

Stamp IvorySQL 2.2

Merge pull request IvorySQL#180 from idrawone/IVORY_REL_2_STABLE_insert

support global unique index insert and update

Stamp IvorySQL 1.5

Stamp IvorySQL 1.4