Needed by ERP5 software release.

The purpose of the added script is to shorten calling neoctl by removing the
need to constantly supply things SlapOS can provide on its own like
certificates and admin address. A sample command is now as simple as:

    ~/srv/runner/instance/slappartX/bin/neoctl set cluster STARTING_BACKUP

/reviewed-on nexedi/slapos!120

This reverts commit 7f6729de.

ZODB has been switched to ZODB4 in 447b27e6 (Switch from ZODB3 (3.10.7)
to ZODB (4.4.4)) including raising transaction version requirement to
1.7.0 so we can try to introduce zodbtools one more time.

/proposed-for-review-on nexedi/slapos!121

This reverts commit ae808179.

Reason for revert: zodbtools depend on ZODB while currently neoppod &
erp5 are depending on `ZODB3 = 3.10` so upon installing both ZODB3 and
ZODB are installed. Together with our requirement

    stack/erp5/zope-versions.cfg:transaction = 1.1.1

This creates version conflict and installation fails:

2016-11-17 14:56:35,858 testsuite    : INFO     slapgrid_sr : 2016-11-17 14:56:35 slapos[3698] INFO The version, 1.1.1, is not consistent with the requirement, 'transaction>=1.6.1'.
2016-11-17 14:56:35,937 testsuite    : INFO     slapgrid_sr : 2016-11-17 14:56:35 slapos[3698] INFO While:
2016-11-17 14:56:35,937 testsuite    : INFO     slapgrid_sr : 2016-11-17 14:56:35 slapos[3698] INFO   Installing neoppod.
2016-11-17 14:56:35,937 testsuite    : INFO     slapgrid_sr : 2016-11-17 14:56:35 slapos[3698] INFO Error: Bad version 1.1.1

So revert zodbtools hooking for now until we upgrade our ZODB to ZODB > 3.

As advised by @Tyagov this adds zodbutils egg [1,2] to our software
stack: both NEO and ERP5 (since stack/erp5/ inherits from
neoppod/software-common.cfg)

I have not build-tested this patch but I hope it should be ok.

/cc @nexedi

[1] https://lab.nexedi.com/nexedi/zodbtools  
[2] https://pypi.python.org/pypi/zodbtools

/reviewed-on nexedi/slapos!116

Slapos.toolbox has a new dependency to pycurl, which fails to compile if libcurl cannot be found. This commit adds the component/pycurl dependency to most of the Software Releases which have a dependency to slapos.toolbox.

I tried to do it globally, so I couldn't check the compilation of all the modified SRs. Is it a way to test that all SRs still compiled ?

Also, did I forget some important SR ?

@rafael @alain.takoudjou @kazuhiko @jm 

/reviewed-on nexedi/slapos!97

This is backported to ZODB-3.10 https://github.com/zopefoundation/persistent/pull/44

The patch is needed for wendelin.core to being able to relase not needed
memory.

/reviewed-on nexedi/slapos!93

- logrotate: make stack with cfg.in containing sections for logrotating with dcron and gzip
- neoppod: use this logrotate stack

because the recent version of paramiko (>= 2.0.0), that is a part of
slapos.toolbox's dependencies, depends on cryptography insead of
pycrypto.