"isolov submitted pbeast with tag master for tdaq-99-00-00"

=== pbeast ===

reuse CURL handler as discussed in ADAMATLAS-473: 1. declare CURL handler thread local 2. reuse CURL handler in PBEAST curl requests 3. use POST curl method in bstconfig instead of headers 4. use POST curl method defining pbeast schema (Igor Soloviev) add pbeast_read_mt to evaluate performance of multi-threaded CURL requests (Igor Soloviev) add MIMEPOST support to PBEAST CurlRequest interface to adderss future pvss2pbeast requirements ADAMATLAS-471 (Igor Soloviev)