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/pcre.tmpl

@@ -0,0 +1,17 @@
+# Template file for 'pcre'
+pkgname=pcre
+version=7.8
+extract_sufx=".tar.bz2"
+url=http://kent.dl.sourceforge.net/sourceforge/pcre
+build_style=gnu_configure
+pkgconfig_override="libpcre.pc libpcrecpp.pc"
+configure_args="--enable-utf8 --enable-unicode-properties"
+short_desc="Perl Compatible Regular Expressions"
+maintainer="Juan RP <xtraeme@gmail.com>"
+checksum=f8cc336f984bce9bfebaef27e6376d84845bce8f
+long_desc="
+ The PCRE library is a set of functions that implement regular expression
+ pattern matching using the same syntax and semantics as Perl 5. PCRE
+ has its own native API, as well as a set of wrapper functions that
+ correspond to the POSIX regular expression API. The PCRE library is free,
+ even for building commercial software."