Implement improvements to --mbps accuracy for #2
Merge branch 'master' into Enhancement_improve_--mbps_option_stability_and_performance

Conflicts:
	src/Makefile.am
	src/send_packets.c
	src/sleep.c
	src/sleep.h
	src/tcpreplay.c
Removed sleep-accel option. Timestamp after packet sent which allows us to clean up several timestamp hacks.
Add --enable-timestamp-trace option and related trace information
Fixed issue with incorrect --mbps speed
Deleted files automatically generated by autogen.sh and configure scripts
Ensured everything would compile without C99
Ensure that skip_length does not interfere with -L option
Restore some files required to run ./configure without running autogen.sh
more files required by ./configure
fix typo in license/copyright comments
Merge pull request #3 from appneta/Enhancement_improve_--mbps_option_stability_and_performance

Enhancement improve   mbps option stability and performance