Added code to check if code completion was sucessfully done
print an error message if commandline arguments are not properly specified
added possibility to disable automatic triggering of completion
Merge pull request #17 from nicolamontecchio/master

custom enabling of automatic completion popup
make ac-clang-async-do-autocompletion-automatically configurable in .emacs
fix ac-clang-launch-completion-process to handle properly non-file buffer
Merge pull request #20 from joonhwan/master

ac-clang-launch-completion-process problem when invoked with non-file buffer
buffers could be saved when completion process was down