Fix generation of makefiles using autoreconf
Fix generation of makefiles using autoreconf

Fix automake (1.11.6) as invoked by autoreconf failing on missing NEWS
and COPYING files by declaring the project as "foreign", meaning that
it doesn't follow GNU file layout strictly. Remove now unnecessary
"--foreign" option to automake in bootstrap script.

Fix "I2_C___ATTRIBUTE__: command not found" message during configure
by setting a makefile flag such that aclocal includes the config
directory and thus the c-attribute.m4 file.

Fix autoconf "warning: AC_LANG_CONFTEST: no AC_LANG_SOURCE call
detected in body" by wrapping the code in the I2_C___ATTRIBUTE__ with
AC_LANG_SOURCE as it suggests.

perfsonar/owamp,perfsonar/owamp,perfsonar/owamp