Merge Giuseppe's parallel-wget patch.
retrieve_from_file in retr.c now checks for metalink files.
Fix bad persistence check.
Merge http://addictivecode.org/git/parallel-wget into parallel-wget
A rough initial attempt at achieving Goal #2.
Implemented resource fallbacking during metalink download. No -c behavior.
Fix some very broken pconn-freeing logic (suspect more like this...).
Initial attempt at achieving segmented downloading from multiple resources.
Corrected faulty logic on thread creation. Segments recorded separately then merged.
Corrected the dual usage mistake of loop variable in retr.c.
Update if statement involving hs->restval http.c:2859
Initial attempt at incorporating sems logically.
Remove obsolete retry tag in retr.c
Separate segmented download and fallbacking.
Fix No URLs found in <file> message printed after download.
Initial attempt at fallbacking in threaded downloads.
Update configure.ac and src/Makefile.am
Try using pkg-config of libmetalink in configure.ac - error during make
Use pkg-config of libmetalink in configure.ac
Use latest bootstrap from gnulib, and fix bootstrap.conf.