bug fix with maxwait and curl

https://github.com/ozzi-/check_mailbox/pull/7

min and max messages

Added:
-n MIN_MESSAGES Minimum expected number of messages in inbox (default: 0)
-N MAX_MESSAGES Maximum expected number of messages in inbox (default: 100000000)

Improved / Fixed:

• parsing of IMAP response

1.2: Merge pull request #2 from 1resu/ssl

Added curl's --ssl argument

1.1

fixing imap

1.0

Create README.md