Merge pull request #48 from 130s/master

Update CHANGELOG.rst for 1.1.0-7
remove installed file if openrtm_aist_FOUND is not found, and do not configure when system runs make again
Merge pull request #50 from k-okada/fix_when_cache_removed

remove installed file if openrtm_aist_FOUND is not found, and do not con...
check if omniidl works
Merge pull request #53 from k-okada/check_if_omniidl_exists

check if omniidl works
Update repository URLs