exclude x64fsl files
use :utf8 symbol directly in external-format

sbcl can use :utf8 as a direct symbol also
gitignore 32 and 64 bit ccl fasl files

they have different file extensions
Merge pull request #62 from cmstrickland/ccl-fixes

A couple of tiny ccl fixes, external-format and gitgnore for ccl fsl files.
fix import-posts pass through 'since' as nil

adds a conditional to the invocation of import-post in import-posts loop

there needs to be a guard around 'since' in the loop:
if import posts tries to pass it's optional 'since' parameter through to
import-post it will prevent any posts from being output , because every
post will be compared against a timestamp of nil
Merge pull request #63 from cmstrickland/wp-import-since

optional 'since' handling in WP import plugin
Cleanup wordpress since handling a little more.
utf-8 output when writing wordpress imported files

the file writer in wordpress import did not set external-format
Merge pull request #64 from cmstrickland/unicode-import

utf-8 output when writing wordpress imported posts
Readable theme should include links to prev/next page.