Mega patch to improve how build dependencies are handled and

how packages are found.

First: I removed all these *-deps.db files and only a single file
is used now "build-depends.db"; it's smaller and will be easier
to handle in the future... when "run-depends.db" is added :-)

Second: there's no need to specify version of package anymore;
before you had to do:

	$ pkgfs.sh install git-1.6.0.2

now you only do:

	$ pkgfs.sh install git

This will read the variables located at PKGFS_TEMPLATESDIR/git.tmpl
and will the install the version that is there.

--HG--
extra : convert_revision : 9e3e5d70965a69c76f59e322b7c7b674d627af52

templates/libidn.tmpl

@@ -0,0 +1,25 @@
+# Template file for 'libidn'
+pkgname=libidn
+version=1.9
+extract_sufx=".tar.gz"
+url=http://ftp.gnu.org/gnu/libidn
+build_style=gnu_configure
+pkgconfig_override="libidn.pc"
+configure_env="EMACS=/bin/false"
+configure_args="--disable-csharp --disable-java"
+short_desc="Internationalized Domain Names command line tool"
+maintainer="Juan RP <xtraeme@gmail.com>"
+checksum=3b2217f015965600b69983cf831746a591f0680e
+long_desc="
+ GNU Libidn is an implementation of the Stringprep, Punycode, and IDNA
+ specifications defined by the IETF Internationalized Domain Names (IDN)
+ working group. It is used to prepare internationalized strings (such as
+ domain name labels, usernames, and passwords) in order to increase the
+ likelihood that string input and string comparison work in ways that make
+ sense for typical users throughout the world.
+
+ The library contains a generic Stringprep implementation that does Unicode
+ 3.2 NFKC normalization, mapping and prohibition of characters, and
+ bidirectional character handling. Profiles for iSCSI, Kerberos 5, Nameprep,
+ SASL, and XMPP are included. Punycode and ASCII Compatible Encoding (ACE) via
+ IDNA are supported."