stop tracking generated `./configure'
Typo
Correct symbol conflict with pow10 function
Correct #include directives

Add several standard library headers in f8types.hpp and f8utils.hpp;
use fix8/ prefix in <> includes in .cpp files
Remove extern "C" in modp_dtoa declaration

Since this is a C++ project anyway, it isn't useful to declare C linkage for a
single external function.
f8types.hpp: Standard compliant type names

Name starting with an underscore and capital letter are reserved
according to standards, prefer lowercase.
Revert "Remove extern "C" in modp_dtoa declaration"

This reverts commit 1c5514c982b07346ee3f78bc1bc3fe6065b08ba6.
Commit tried to fix what was actually user error.
Merge branch 'master' of https://github.com/roysc/fix8 into roysc-master
Added configure back