New csf v2.50

Changes:

• Removed option ALLOW_RES_PORTS from new installs, setting is ignored
• Check for LF at the end of form data for files edited through the WHM UI and append one if omitted
• Following the changes in 2.48 the LOGDROP chain doesn’t distinguish between incoming and outgoing blocks. So, LOGDROP has now been split into LOGDROPIN and LOGDROPOUT