SQLite benchmarks are completely WRONG

To have comparable benchmarks:

instead of
`CREATE TABLE test (key blob, value blob, PRIMARY KEY(key))`
please use
`CREATE TABLE test (key blob not null, value blob not null, PRIMARY KEY(key)) WITHOUT ROWID`

and possibly even

```sql
CREATE TABLE test (
key blob not null,
value blob not null
PRIMARY KEY (key, value)
) WITHOUT ROWID
```
to enable index-only scan.

Also,
use `select value from ...` instead of `select * from`.

use `insert into` instead of `REPLACE INTO`.

issue `VACUUM` before making read-test.

Use latest SQLite version (3.15.0). It has in changelog:
`Miscellaneous micro-optimizations reduce CPU usage by more than 7% on common workloads.`

Also, mention in HTML 64-bit OS or 32-bit OS is used.

In order to benchmark, we MUST use fastest way to implement tasks for each technology.

After these fixes PLEASE update benchmarking page.