wx: Add missing wxTextCtrl:changeValue

It was missing.
wx: Add wxActivateEvent
erts: Fix various autoconf issues

* Check of atomics on bsd
* Add --enable-systemd for epmd
* Remove unused --enable-tsp option
wx: Fix non constant define (wxSL_LABELS)

wxSL_LABELS have changed constant value in 3.0, make version agnostic
by doing a lookup during runtime instead of constant.

Thanks Enrique Fernández (efcasado)
wx: Add wxPopup(Transient)Window

Useful class though not documented in wxWidgets-2.8
Fix permissions of some files in the repository

These files aren't supposed to be executable. For reference, the command used to
find them was:

	git ls-files -z | xargs -0 -J % find % -type f -perm ++x
Add synchronous stop function to wx_object
Merge branch 'siri/sync-stop-gen/OTP-11173'

* siri/sync-stop-gen/OTP-11173:
  Add synchronous stop function to wx_object
  Fix minor bugs in gen_server and gen_fsm documentation
  Update gen_event:stop to be synchronous
  Add synchronous stop functions to gen_server and gen_fsm
  Add synchronous stop function to proc_lib
  Add system message 'terminate'
  Remove old code from stdlib/test/sys_sp2.erl
wx: Fix destroy bug

Do not postpone deletion of wx*DC objects since they need to be
deleted directly. Otherwise, if inside showModal, causes an eternal
loop of wxPaint events on Windows.
Merge branch 'dgud/wx/additional-functionality/OTP-11986' into maint

* dgud/wx/additional-functionality/OTP-11986:
  wx: Fix destroy bug
  wx: Add wxPopup(Transient)Window
  wx: Fix non constant define (wxSL_LABELS)
  wx: Add wxActivateEvent
  wx: Add missing wxTextCtrl:changeValue

OTP-11985
Merge branch 'maint'
Prepare release
Merge tag 'OTP-17.1'

=== OTP-17.1 ===

Changed Applications:
- asn1-3.0.1
- common_test-1.8.1
- compiler-5.0.1
- crypto-3.4
- debugger-4.0.1
- dialyzer-2.7.1
- diameter-1.7
- erl_interface-3.7.17
- erts-6.1
- hipe-3.11
- inets-5.10.2
- kernel-3.0.1
- mnesia-4.12.1
- observer-2.0.1
- reltool-0.6.6
- ssh-3.0.3
- ssl-5.3.5
- stdlib-2.1
- syntax_tools-1.6.15
- test_server-3.7.1
- tools-2.6.15
- typer-0.9.8
- wx-1.3

Unchanged Applications:
- cosEvent-2.1.15
- cosEventDomain-1.1.14
- cosFileTransfer-1.1.16
- cosNotification-1.1.21
- cosProperty-1.1.17
- cosTime-1.1.14
- cosTransactions-1.2.14
- edoc-0.7.13
- eldap-1.0.3
- erl_docgen-0.3.5
- et-1.5
- eunit-2.2.7
- gs-1.5.16
- ic-4.3.5
- jinterface-1.5.9
- megaco-3.17.1
- odbc-2.10.20
- orber-3.6.27
- os_mon-2.2.15
- ose-1.0
- otp_mibs-1.0.9
- parsetools-2.0.11
- percept-0.8.9
- public_key-0.22
- runtime_tools-1.8.14
- sasl-2.4
- snmp-4.25.1
- webtool-0.8.10
- xmerl-1.3.7