Actually returning error for bad mkdirs

- The test may be messed up
Attempting to use newer libs on Travis-CI
Quoting the shell redirection
Adding an apt update
Typos are fun
Adding some log statements
Removed attempt at writing log file before it's been opened
More log and print statements
More log and print statements
Logging out argc
Merge branch 'master' of github.com:mwatts15/TagFS

Conflicts:
	tagfs.lc
Removed an unnecessary check
More logging
Logging out string for errno after fuse exits
Printing argv
Checking cwd
Cleaning up tagfs_data when Fuse dies early
Using absolute path for acceptance_test data and mount directories
Reversed the filter semantics

- was 'anything less than or equal to' the filtering level would print. should
  have been 'anything greater than or equal to'
Re-exposed the log filtering level

- cleaned up compiler warnings