fix comments ExtractAddress() -> ExtractDestination()
Add travis build:passing/failing indicator.
Merge pull request #4766

5a0823a Add travis build:passing/failing indicator. (randy-waterhouse)
Merge pull request #4772

87d9819 fix comments ExtractAddress() -> ExtractDestination() (jtimon)
Add warnings for autogen.sh. Fix AC_CONFIG_SRCDIR.
Update obsolete AC macros.