Changes between releases 3.00 and 3.11

* Latest edition (version 3.11)
* ang2pix_ring and pix2ang_nest routines now accept scalar arguments

* Previous edition (version 3.10)
* bug corrections: query_disc: correct handling of empty disc; bin_llcl: correct handling of optional argument.

* double precision of input now preserved in gaussbeam and euler_matrix_new.

* fits2cl: addition of /PLANCK1 keyword to read best fit C(l) model to Planck 2013 + external data.

* it is now possible to read a specific FITS file extension identified by its (0-based) number or its case-insensitive EXTNAME value with the Extension keyword added to fits2cl, getsize_fits, read_fits_map, read_fits_s and read_tqu.

* update of the required IDL-astron library routines, and their supporting Coyote routines (2013-02-08).

Version 3.11, 2013-04-24