update configure for automake 1.14

 - fixes a warning about missing AM_PROG_AR
 - makes warnings non fatal because 1.14 warns about the use of
   subdirectories
Merge pull request #125 from lonvia/configure

update configure for automake 1.14
minor english fixes
Merge pull request #127 from harry-wood/patch-1

minor english fixes
Add Access-Control-Max-Age with 600 seconds timeout
Remove whitespace
Integrated pull request 129.