fixed error messages and logging levels
cli: better message for 'command not found'
documentation: fix request command for specific computer
console: ipython support
console: bpython support

both ipython and bpython are built and provided with slapos. bpython is the
default now, with colorful drop down menus. we can choose later.
Remove non-ASCII character for better compatibility.
Release 1.0.0rc2
configure client: fixed -h message
cli: group commands - client, node, other
node register: retain comments, reject non-ascii configuration templates
Merge branch 'cliff'
updated CHANGES
node register: write configuration with regexp, not configparser

this retains comments and avoids issues with unicode, multiline values
(certificates) etc.etc.
Merge remote-tracking branch 'origin/token-auth'

Conflicts:
	slapos/cli/register.py
config file: grammar
removed iniparse: not used anymore
hack to avoid cmd2 bug
do not use absolute path for vi
grid: avoid spurious empty lines in Popen() stdout/log
Release 1.0.0rc3.