Release v0.2.5

This is a patch release with the following changes:

• bump dependencies and include lz4 in shaded jar
• new API: ClickHouseRowBinaryStream.writeUInt64Array(UnsignedLong[])
• support column comments
• support explain queries
• fix keep-alive timeout issue by reusing validated connection
• fix ResultSet.findColumn(String) issue
• fix the issue of not being able to use NULL constant in PreparedStatement
• fix toLowerCase issue for Turkish

Minor bugfix

Fix FORMAT clause append for queries, ending with comments.

0.2.3

Adding support for Decimals in RowBinary protocol

Release 0.2.2 (bugfix)

• close certificate keystore
• fix for Boolean data type

release_0.2

• New API for sending streams of data
• Old extension of ClickHouseStatement deprecated