Add checks to "r_file_mkstemp" calls
Fix CID 1191361
more up directories if the radare2 directory is rather deep
fix #822 & related mess
Fix multuples possible issues

- unchecked malloc return
- possible division by 0
Fix CID 1205216
Fix CID 1194798
Fix lot of warnings
Fix CID 1134934
Fix a gcc warning
Fix #806 - Handle ^D in ==
Implement 'ej' to dump config in json and update uncrustify