use autogenerated functions for reports
fix template and regenerate code
port schema field to generator
optimize timertag_lock usage
reduce lock/unlock calls (ru_stime--)
read all the data, then release the socket
port request_tags to generator branch
add median time to all tables

also disable 'default' reports for now
fix median in tag reports
return upper limit of histogram segment
return center of the histogram segment
use calloc() to initialize histogram data
optimize a bit and use float
increase histogram size
update year
include my_pthread.h
include my_pthread.h
add histogram 'view' support
Merge branch 'generator_hv' into generator

* generator_hv:
  add histogram 'view' support
  include my_pthread.h
drop pinba_tag_report_timeout option and its code