Merge pull request #15 from d0/master

Build libnpa during TravisML tests
ccid: updated guide for building OpenSC
fixed incorrect mix of uint32_t/unsigned long int
show ATR of unrecognized cards for `npa-tool -i`
added remote smart card reader app
added documentation about remote reader
allow connections from any host
mention Remote Smart Card Reader
documented nPA card drivers for OpenSC
building OpenSC requires its configure script
documentation about setting OPENSC_CONF
added opensc.conf for windows binaries
working on documentation
fixed boxing commands

I misread BSI TR-03119: The context specific data structures are
separately wrapped into octet strings or similar.
pinID has an INTGER tag
transmittedPin is of type numeric string
fixed parsing of EF.CardAccess and Certificate Description
set max_send/recv_size
commented sc_driver_version of npa pkcs15 emulator
fixed memory handling of boxing asn1 structure