Added bin/ directory
Ignoring all files in bin/ but keeping the directory itself
Removed `scoped` parameter from machinet.pool.Pool.search() method
Two new exceptions (query related),
.query() method in pool object (now it's just a filling, it's not yet
implemented),
basic Query objects for advanced pool searching
Exception is raised faster (before variables are created in
Query.construct()
Advanced querying functionality via machinet.pool.Query() object is
implemented and tested