Switch from os to pathlib because it's more modern i guess?

(Resolves #19)

ftracker/__main__.py

@@ -1,4 +1,4 @@
-import os
+from pathlib import Path
 from .core import app
 
 # Start the flask server if run from terminal
@@ -14,7 +14,7 @@ if __name__ == "__main__":
 
 		# Prettier URLs by auto-loading <path>.html
 		# Our nginx config does this as well
-		if not os.path.isfile(fpath):
+		if not Path(fpath).is_file():
 			return app.send_static_file(path + '.html')
 
 		return app.send_static_file(path)

ftracker/config.py

@@ -1,4 +1,5 @@
-import sys, os
+import sys
+from pathlib import Path
 from configparser import ConfigParser
 
 class Config:
@@ -8,9 +9,9 @@ class Config:
 		def findConfigFile():
 			if len(sys.argv) > 1:
 				return sys.argv[1]
-			elif os.path.isfile('config.ini'):
+			elif Path('config.ini').is_file():
 				return 'config.ini'
-			elif os.path.isfile('/etc/ftracker/config.ini'):
+			elif Path('/etc/ftracker/config.ini').is_file():
 				return '/etc/ftracker/config.ini'
 			else:
 				return None