Fixed all the todos from last commit

[miker]

I fixed all of the todos we discussed. I have left 1. I hope this commit isn't to hard to merge. I see it can't be done automatically. Still trying to figure out the best workflow for this.

TODO 1; "Jail names should be descriptive. Jail names are limited to n characters, and can only be alphanumeric."
I want to add a sentence about jail names, but wasn't sure if jail names can be, or should be descriptive, and what the jail name length limit is, or if names are limited to alphanumeric characters.

[miker]

Oops, I kinda see what I did. I deleted the whole section about restoring a backup, instead of just the todo comment. I'll wait and see how you want to fix this.

[miker]

Looking again, I think the "restoring a backup" part should be rewritten. I'll be happy to do so if you give me the info to start from. I may be able to use what's there if need be.

[olevole]

TODO 1; "Jail names should be descriptive. Jail names are limited to n characters, and can only be alphanumeric." I want to add a sentence about jail names, but wasn't sure if jail names can be, or should be descriptive, and what the jail name length limit is, or if names are limited to alphanumeric characters.

I found only this information in the man page:

 name    The jail name.  This is an arbitrary string that identifies a
             jail (except it may not contain a ‘.’). 

It seems this is a good phrase) I could not find the maximum number of characters in jname in man. By my test, jail name limited by 256 char. Therefore, I think we can not write about this

[miker]

Agreed about the character limit. I'll rework the info from the manpage into it. Only thing left for this page is restoring backups info (unless you already added it in) on my phone atm.