Fixes and improvements
- logging: rename log() to log_warning()
- reporter-mantisbt: Fix typo in help
- bugzilla: add check if option -d was entered
- dd: extend create_dump_dir to allow set pid in dumpdir name
- lib: fix to ensure order of login credentials when reporting using abrt-cli
- configure.ac: update glib min. version dependency
- lib: fix newline issue with ask_password