Remove autogenerated files

These are generated when running "autoreconf -if", no need to track
them in git.
Add .gitginore: Ignore files that are generated on build

A "git status" after building now comes back clean.
Fix syntax error in encfsctl.pod (misplaced "=pod")

Error was:

	/usr/bin/pod2man --section=1 --release=1.7.5 --center="Encrypted Filesystem" encfsctl.pod encfsctl.1
	encfsctl.pod around line 1: =cut found outside a pod block.  Skipping to next block.
	POD document had syntax errors at /usr/bin/pod2man line 69.
	make[2]: *** [encfsctl.1] Error 255