remove isoLanguageCode field. this field is no longer used.
use keepAlive (android 2.2 or later)
fix for android 1.5
check that controlURI is set and don't wait longer than needed
Merge pull request #138 from arankin/master

check that controlURI is set and don't wait longer than needed
Merge pull request #137 from takke/use-keepAlive-android-2.2-or-later

TFJ-836 use keepAlive (android 2.2 or later)
Merge branch 'master' of https://github.com/yusuke/twitter4j
gitignore update