Refactor: some naming / comments / code org
Refactor: tagText is too long; break out tagTextCallSolrTagger
Refactor: clarify tagText logic.

Variables should generally be defined late; not at top (Java isn't C)
Worked around SOLR-5154; the StreamingResponseCallback won't be used when remote'ed (non-embedded).
Good idea to set proper Content-Type on a tagger request
Refactor: /tag should be set via setPath() not 'qt' (avoid redundant 'qt' in url)
Put auto jar/war downloading in "init" target only run when needed. And added print-start-jetty.
Merge branch 'master' of https://github.com/OpenSextant/Xponents