- No longer uses builtin function prompt_pwd to take advantages of fish-shell array variable
- Always use `[ ]` instead of `test` for everything make a comparison between 2 argument as its clearer to read
- We are still using `test` for things like `test -d file` or `test -w folder` as this is applied to a single argument

Change means to get all git information
Use git status --porcelain as it is reliable accross all git version
Use git rev-parse to check if branch is detached and the number of ahead and behind commit
It will also show you the tag when detaching to a tag

- Major changes:
  - You can now pass the SEGMENT you want to pass to Fishline as positonnal argument
  - You now pass the last_status to Fishline using the option `-s $status`
  - Fishline is now able to output a `fish_right_prompt` compatible prompt using the `-r` option
  - Addition of the `-l` option, which is the default and will output a `fish_prompt` compatible prompt
- Backward compatibility:
  - Prompt setup using the `FLINE_PROMPT` variable will work as expected with the previous version
  - If you dont pass your last status using the `-s` option, Fishline will try to get it from the first non optionnal argument (same as in v1)
- Breaking changes:
  - Any theme setting one of the following var `FLSYM_PRE_CLOSE`, `FLSYM_CLOSE`, `FLSYM_POST_CLOSE`, `FLSYM_SEPARATOR` will no longer work.
    You will need to modify them using the replacing vars (see `themes/tty-compatible.fish`)

…ll not print an error on detached commit that are not part of any tag

- Work as STATUS for return code < 126
- For return code from 126 to 160 it translate return code to its meaning
- Translate return code 126 to 'NOEXEC'
- Translate return code 127 to 'NFOUND'
- Translate return code from 129 to 159 (SIGNAL return code) to their meaning
  Exemple: - Process exited from Ctrl+C will show SIGINT instead of 130
           - Process exited from Segmentation Fault will show SIGSEGV instead pf 129

…$SIG` return SIGNAME in lowercase

 - Change sed '-r' flag changed to '-E' as '-r' is not availlable on MacOSX
 - Change '\n' in sed expression by a call to tr (know issue with `sed -E` on MacOSX)
 - Fix test.fish sed expression as '\S' was not working as expected
 - Fix `sed` expression that added a '\n' to the PATH on MacOSX in the FULLPWD segment

- when inside a new repository without any commit it will now show you as detached on master
- this tells you that you are in a repository that does not have a root commit
- added a trigger for the FLEVENT_GIT when the .git folder is created