Merge branch 'xoauth'

diff --cc .gitignore
Simple merge

diff --cc Makefile.am
Simple merge

diff --cc configure.ac
Simple merge

diff --cc test/common.sh.in
index ae91619470c772a302deb2c3edb0c3b6832b316c,7a4fc7aad0af8d07e52ae9bd1db85cdfef70fc78..b2c7a7d71b5ba548bd7bcba37364cfdd49d82337
--- 1/test/common.sh.in
--- 2/test/common.sh.in
+++ b/test/common.sh.in
@@@ -25,14 -26,16 +26,23 @@@ test -z "$supported_locks"  &&  support
  test -z "$default_locking"  &&  default_locking="@default_locking@"
  test -z "$MULTIBYTE_ENABLED"  &&  MULTIBYTE_ENABLED="@MULTIBYTE_ENABLED@"
  test -z "$ICONV_ENABLED"  &&  ICONV_ENABLED="@ICONV_ENABLED@"
+ test -z "$OAUTH_SUPPORT"  &&  OAUTH_SUPPORT="@OAUTH_SUPPORT@"
+ test -z "$CURL_USER_AGENT"  &&  CURL_USER_AGENT="@CURL_USER_AGENT@"
+ 
+ #### If w3m is used, HOME needs to be set, assuming default w3m config.
+ #### So make sure that HOME is set to avoid run-time warning about not
+ #### being able to create config directory.
+ test -z "$HOME"  &&  HOME=$MH_TEST_DIR
+ HOME=$MH_TEST_DIR
+ export HOME
  
 +#### If w3m is used, HOME needs to be set, assuming default w3m config.
 +#### So make sure that HOME is set to avoid run-time warning about not
 +#### being able to create config directory.
 +test -z "$HOME"  &&  HOME=$MH_TEST_DIR
 +HOME=$MH_TEST_DIR
 +export HOME
 +
  unset MAILDROP MHBUILD MHCONTEXT MHMTSUSERCONF MHN MHSHOW MHSTORE
  unset MHLDEBUG MHPDEBUG MHWDEBUG PAGER
  #### Set LC_ALL in individual tests as needed.  Unset these so