Make the send attribute explicit. See iframe code generated at http://developers.facebook.com/docs/reference/plugins/like/ for more info.

Issue #1664410 by lliss - Add an update function to get the data up to a known state using boolean values.

Issue #1664410 by lliss - fix output of iframe text so is displays 'true' and 'false'. We store the variable as a boolean so we don't have to change the stored values if the api changes again in the future.

Issue #1509770 by fivefrank, almaris, liss - make laguage string optional by allowing an empty string.

Issue #1509770 by fivefrank, almaris - fix display issue because height and width attribures should not have 'px' suffix

Issue #1507442 by MrDamasajaga: Old files are replaced by the new once. My excuse for a bad release.

Issue #1171922 by MrDamasajaga: New 2.x branch with all the new functions and configurtion improvements.

Issues #1177412 and #1152726 re language support (now customizable through the administrative interface).

Issue #1177250 by dizarter, relocating "show on teasers" and "content type" checks closer to "case" statement. Also condensed the "likebutton" variable.

Added option to include button on teasers.
Added notations to code.
Updated hook_uninstall().

Also removed duplicate form from admin file

MANY configuration options added, block added, updated fetched Facebook URL to https so button can be displayed on secure sites, additional perms added.