Remove unused variables
Fix the definition of badsector_magic to fix a compilation warning
Use the actual program's file name instead of using a hardcoded one
Remove EXECNAME since it is not used anymore
Remove file system's dependancies from main.c since they are not needed
Merge pull request #47 from pfrouleau/review/fix_compilation_warnings

Review/fix compilation warnings
Merge pull request #48 from pfrouleau/review/replace_EXECNAME_by_get_exec_name

Review/replace EXECNAME by get_exec_name