comic2ebook/func: Add a delete option and function (closes #458)

README.md

@@ -140,7 +140,7 @@ Options:
   MAIN:
     -p PROFILE, --profile=PROFILE
                         Device profile (Available options: K1, K2, K34, K578,
-                        KDX, KPW, KPW5, KV, KO, K11, KS, KoMT, KoG, KoGHD,
+                        KDX, KPW, KPW5, KV, KO, K11, KS, KoMT, KoG, KoGHD,   
                         KoA, KoAHD, KoAH2O, KoAO, KoN, KoC, KoL, KoF, KoS,
                         KoE) [Default=KV]
     -m, --manga-style   Manga style (right-to-left reading and splitting)
@@ -163,6 +163,8 @@ Options:
                         Split output into multiple files. 0: Don't split 1:
                         Automatic mode 2: Consider every subdirectory as
                         separate volume [Default=0]
+    -d, --delete        Delete source file(s) or a directory. It's not
+                        recoverable.
 
   PROCESSING:
     -n, --noprocessing  Do not modify image and ignore any profil or
@@ -180,6 +182,8 @@ Options:
                         page numbers [Default=2]
     --cp=CROPPINGP, --croppingpower=CROPPINGP
                         Set cropping power [Default=1.0]
+    --cm=CROPPINGM, --croppingminimum=CROPPINGM
+                        Set cropping minimum area ratio [Default=0.0]
     --blackborders      Disable autodetection and force black borders
     --whiteborders      Disable autodetection and force white borders
     --forcecolor        Don't convert images to grayscale