moved LogQueryImpl to logdb.query package
fixed join waiting for subquery ends always more than 1 sec
handling [] in parseOptions
prevent too many file input stream open at directory watcher
closed araqne/issue#215. support logdb count/logdisk duration option
fixed araqne/issue#182. throws parse exception for empty command token
Merge branch 'master' gradually

Conflicts:
	araqne-logdb-geoip/pom.xml
	araqne-logdb-jython/pom.xml
	araqne-logdb/pom.xml
	araqne-logdb/src/main/java/org/araqne/logdb/DefaultQuery.java
	araqne-logdb/src/main/java/org/araqne/logdb/query/LogQueryImpl.java
	araqne-logdb/src/main/java/org/araqne/logdb/query/command/Join.java
	araqne-logdb/src/main/java/org/araqne/logdb/query/engine/LogQueryImpl.java
Merge branch 'master' into newquery

Conflicts:
	araqne-logdb-geoip/pom.xml
	araqne-logdb-jython/pom.xml
	araqne-logdb/pom.xml
	araqne-logdb/src/main/java/org/araqne/logdb/query/command/Join.java