ipfixcol: variable paths to configuration files
fbitdump: variable path to configuration file
json storage plugin: fixed libsiso linking
ipfixsend: using simple socket library (libsiso)
fbtidump: Configuration.h is rebuit after configure
refs #2031
ipfixcol: Updated build for config.h
refs #2031
Fixed build of libsiso
ipfixcol: config.h is now built with priority
Fixes problem with rpm build
ipfixcol: fixed visibility flag propagation