resolve issue with non-printable characters in proposal institution; resolve problem with target directory for gridftp plugin

added ability to specify target directory for daqs/uploads; added max runtime option for daqs; added ability to specify upload of a directory after exit for daqs

enhanced daq processing algorithm to avoid resource starvation between simultaneous DAQs and uploads

add ldap user info object that will be used for ldap-based utilities; introduce ldap create user functionality

changes to sftp utility to allow calculating md5 sum, as well as to be able to use ssh key for authorization