netdata: Streamline package

* Change maintainer to myself, asked by current maintainer
* Remove atomic workaround, it's been fixed upstream in 1.4.0
* Install all plugins, disable those that depends on external applications
* Remove bundled pyYAML library, use package if you want to use python plugins
* Remove "unused" files in webdata directory, saves about 900k
  Downside is that some _very_ old browsers might break however since netdata
  is very heavy on javscript you still need a somewhat recent one anyway to get
  a decent experience.

Signed-off-by: Daniel Engberg <daniel.engberg.lists@pyret.net>

admin/netdata/patches/001-disable_external_plugins_by_default.patch

@@ -0,0 +1,26 @@
+diff --git a/conf.d/charts.d.conf b/conf.d/charts.d.conf
+index acb2a6f..8111859 100644
+--- a/conf.d/charts.d.conf
++++ b/conf.d/charts.d.conf
+@@ -30,7 +30,7 @@
+ 
+ # the default enable/disable for all charts.d collectors
+ # the default is "yes"
+-# enable_all_charts="yes"
++enable_all_charts="no"
+ 
+ # BY DEFAULT ENABLED MODULES
+ # ap=yes
+diff --git a/conf.d/python.d.conf b/conf.d/python.d.conf
+index 940bd91..78e2f0a 100644
+--- a/conf.d/python.d.conf
++++ b/conf.d/python.d.conf
+@@ -7,7 +7,7 @@
+ #
+ 
+ # Enable / disable the whole python.d.plugin (all its modules)
+-enabled: yes
++enabled: no
+ 
+ # Prevent log flood
+ # Define how many log messages can be written to log file in one log_interval