Fixed: Assertion failure when retrieving a TIMESTAMP
Commented out: Obsolete enforcing inside execPreparedTuple()
Fixed: Bug with TIMESTAMP that almost undetectable.
Move towards pure, const and nothrow
Merge pull request #19 from simendsjo/master

Move towards pure, const and nothrow
Made exception ctors pure so enforce is pure with dmd 2.064+
Merge branch 'master' of https://github.com/rejectedsoftware/mysql-native
Merge pull request #21 from simendsjo/master

Fix purity of exceptions + enforce for dmd 2.064+
Add opDollar to ResultSet.