[help-deploy][help-update][help-general] Added --from options

[help-general] Updated --git-dir option

help/deploy

@@ -0,0 +1,7 @@
+Usage: dam deploy [<options>] </path/to/target>
+
+Deploys tracks to target folder, with applies metadata and cover image
+
+Options
+   --from <old commit hash>
+      Defines what what commit should dam deploy from. Defaults to when last succesfull deploy occured.

help/general

@@ -1,13 +1,13 @@
 Usage: dam [--help] [--info] [<options>] <command> <args>
 
 Options
-   --git-dir=</path/to/git/dir>
+   --git-dir </path/to/git/dir>
       Defines path to git directory that contains the music collection. Defaults to current directory when not set.
 
 Commands
-   update </path/to/target>
+   update [<options>] </path/to/target>
       Populates database present in target folder with new images.
-   deploy </path/to/target>
+   deploy [<options>] </path/to/target>
       Deploys tracks to target folder, with applies metadata and cover image
    exclude </path/to/target> <condition> [<additional condition>]
       Exclude tracks based on conditions (see dam --help conditions for more information)

help/update

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+Usage: dam update [<options>] </path/to/target>
+
+Populates database present in target folder with new images.
+
+Options
+   --from <old commit hash>
+      Defines what what commit should dam update from. Defaults to when last succesfull update occured.