When coverting to an int32 or int64 type we now strip leading whitespace before trying to convert.
Adding a test for our convert method.
Fixing imports to not use wildcards.
Merge pull request #31 from mkeesey/master

Use trim() before trying to convert input string into a Long
Implementing hashCode for ColumnReference, Aggregate, and Parameter.

Addresses first three classes in Issue #37.

- hashCode is implemented for some of the more major cases.
- Tests are in place to confirm behavior.
Util test code cleanup.

- Added more cases.
- Removed unnecessary assertion.
- Moved the test to a more traditional location.
Merge pull request #41 from dclements/hashCodes

Hash Codes
Merge branch 'master' of https://github.com/ReadyTalk/revori into slf4j

Conflicts:
	server/build.gradle
	server/src/main/java/com/readytalk/revori/server/SQLServer.java