boolean attribute in where clause

This query never returns for us:

> select identifier, signed_in from events where signed_in limit 10;

Removing the WHERE clause we get an immediate result:

> select identifier, signed_in from events limit 10;

I get this in the log file (log level: info) of the server receiving the query (we have a cluster of three machines):

```
********************************BUG********************************
Database: tonne
Query: [select identifier, signed_in from events where signed_in limit 10;]
Error: runtime error: index out of range. Stacktrace: goroutine 45 [running]:
coordinator.recoverFunc(0xc210047c66, 0x5, 0xc21053f5f0, 0x42)
	/home/vagrant/influxdb/src/coordinator/coordinator.go:342 +0x106
runtime.panic(0x883480, 0x1001917)
	/home/vagrant/bin/go/src/pkg/runtime/panic.c:248 +0x106
parser.getTime(0xc2117903c0, 0xc211790300, 0x0, 0x0, 0x101a500, ...)
	/home/vagrant/influxdb/src/parser/query_api.go:384 +0xa7c
parser.parseSelectDeleteCommonQuery(0xc21053f5f0, 0x42, 0x7ff1e8015650, 0x7ff1e8015380, 0xc20fe86fc0, ...)
	/home/vagrant/influxdb/src/parser/parser.go:591 +0x1cf
parser.parseSelectQuery(0xc21053f5f0, 0x42, 0x7ff1e8013640, 0x0, 0x0, ...)
	/home/vagrant/influxdb/src/parser/parser.go:620 +0x73
parser.ParseQuery(0xc21053f5f0, 0x42, 0x0, 0x0, 0x0, ...)
	/home/vagrant/influxdb/src/parser/parser.go:529 +0x579
coordinator.(*CoordinatorImpl).RunQuery(0xc2100a4900, 0x7ff1ed6e96e0, 0xc210071b00, 0xc210047c66, 0x5, ...)
	/home/vagrant/influxdb/src/coordinator/coordinator.go:85 +0x196
api/http.func·004(0x7ff1ed6e96e0, 0xc210071b00, 0x7c66e0, 0xc211265730
```

I use the web interface, InfluxDB 0.5.1, Debian Wheezy, Amd64 architecture.