58.4.5: Backporting fixes

58.4.4: Fix missing 'string' definition

Tag before legacy version and migrator are removed

59.0.3: Add missing define of string

59.0.2: Fix candidate selection on unknown package

* Fix lua error happening when version limited dependency on unknown
  package is specified

59.0.1: Fix approvals and lua error in planner

* Fix shell quotes in approvals code in updater.sh (it broke approvals)
* Fix error 'nil ndexed' in planner

59.0: Support for Conflicts and replan on finish

* Added support for Conflicts field
* Option replan is now string expecting "finished" or "immediate"
* Huge amount of changes in dependencies and packages description in SAT
  solver
* Only single approved state is now stored
* pkgupdate has now --no-replan option to ignore replans
* Running Script with same name multiple times is no longer allowed
* Userlists in entry.lua are ensured to be included only once ignoring
  duplicates

Don't remove package unless it's really installed

58.4.2: Fix how lock directory is used by updater-migrate.sh

58.4.1: Fix invalid variable in updater-migrate.sh script

58.4: changeable usign tool path and updater.sh arguments pass trough

* Argument --usign can be used to change path to usign tool
* updater.sh passes arguments it doesn't know to pkgupdate. This way any
  additional options can be passed to it.
* migrator now uses state file same as pkgupdate so other tools should
  see it as running update.

58.3: Support for localization packages

* Added variable l10n and helper function for_l10n to be used for
  localization packages. It reads uci list updater.l10n.
* Add ability to export variables between scripts using Export command
* Fix updater-migrate init script hanging because of opened standard io

58.2: Check arguments passed to request functions

* Type and values for some arguments are checked as they are passed
  to request functions from configuration scripts to catch invalid usage.
* Report migrator failure using system notification
* Fix migrator being killed when it uninstalls it self
* Small cleanups and debug/trace messages changes

58.1: Fix OSCP configuration not being inherited trough context

58.0: Automatically use opkg custom feeds

* Automatically add repositories from /etc/opkg/customfeeds.conf
* Add support for OCSP
* Allow usage of system CAs in URIs
* Wait for the Internet access in updater.sh script
* Fix updater-migrate dying when it uninstall it self

Version 57 release

* Drop old startcom authority
* Prepare migrator for automatic migrations
* Move some DBG messages to new lower log level TRACE

Version 56 release

* libcurl is used instead of curl application
* plan packages with replan as soon as possible
* fix bug where when directory had same name as file it contains was
  marked as being file in collisions checking
* migrator excludes kmod-fs-9p

* reimplement files collisions checking
* migrator: ignore getbranch-* packages
* clearer error message in case of no connectivity

migrator: Disable branch detection

It was broken and not needed in mostly all the cases.

Make opkg wrapper more resilient and some fixes

* opkg wrapper now adds Install command only if it detects that package
  was installed in current run.
* Fix failure when requesting for specific version of package with
  content given in configuration.
* Fix when package was miss reported as having multiple candidates.
* Fix possibility of updater hanging if subprocess of subprocess hanged.