[feeds] updated packages_berlin

* add lib guard functions (sysupgrade -c is now possible)
* ffwizard-berlin - fix ipinfo snippet
* openvpn-files - rt_tables will already be created by network-defaults
[configs] add lib-guard, statistics-default and olsrd-mod-txtinfo
[packages] add freifunk-berlin-statistics-defaults
[packages] refactor packages

remove kmod-ipt-nat, luci-app-firewall and 6in4
[packages] add olsrd-mod-txtinfo

olsrd-mod-txtinfo is needed for luci-app-statistics
[packages] add collectd-mod-uptime and -mod-memory
[feeds] add support for statistics

* add package freifunk-berlin-statistics-defaults
* integrated support for luci-app-statistics into ffwizard-berlin
configs: build with SSP_SUPPORT/libssp
[feeds] ffwizard-berlin - only configure statistics if installed
[configs] remove ppp support and some kernel debug flags

* remove kernel debug information
* remove kernel symbol table information

DEBUGFS still set (needed by batctl)
[configs] strip polarssl

Only client mode is need (no server or HTTP/SSH proxy support)
[packages] refactoring and removing unnecessary entries
Add support for different default packages list

There a many legacy routers with only 4MB flash memory. It would be cool if we could support
them. This patch refactors our Makefile to support a suffix in profiles/*.profiles. With
this suffix you can alter the default package list.
Add minimal package lists for 4MB flash devices
rename package list 'minimal' to 'vpn'
Makefile - set SHELL to bash
[packages] use wpad-mini instead of wpad
[packages] remove wpad-mini

x86 target fails otherwise
Merge branch 'master' into 0.0.1