Client library: jerasure erasure code method: do not rely on matrix computation to perfrom all the necessary gailos field initialization, explicitly initialize gailios field computations for w 8, 16 and 32. Replace ostringstream with append to string in erasure coding method descriptions.
Meta server: use unsigned integers for file striping attributes, and number of replicas to allow to use all bits in the corresponding bit fields.
Layout emulator: fix compilation by adding cast from now unsigned integer field to integer.
Common library: change all remaining Properties::loadProperties() methods to take ostream argument instead of boolean "verbose" flag, and make it default null argument. Make qfs tool help messages consistent, use cerr instead of cout with loadProperties() in verbose mode in order not to clobber commands output.