avoid copying data from ByteBuffer to another ByteBuffer if possible,  specially for the OffHeapStore

Add "chromium" to the list of browsers tried.
Patch from Felix Kaiser.

Support the JDBC DatabaseMetaData#getClientInfoProperties() method, in the sense of returning an empty result, in order to make Websphere happy.

MVStore changes: abstract storage to support off-heap storage; rename getSize to sizeAsLong; avoid importing java.beans package to speed up starting the JVM