[glom/glom-1-32] (72 commits) ...Merge branch 'master' into glom-1-32

[Murray Cumming <murrayc src gnome org>]

Summary of changes:

  d6c2a02... Use the newer R(Args...) libsigc++ syntax. (*)
  bd837c7... Updated Polish translation (*)
  fd858a0... CanvasEditable: Remove unused private member variables. (*)
  6d06226... Correct implicit uses of (now) explicit operator bool(). (*)
  86a5fa6... WindowPrintLayoutEdit: Minor const improvements. (*)
  dbe8f67... ConnectionPool: Remove unnused m_dialog_epc_progress. (*)
  3068acd... Updated Portuguese translation (*)
  cd53525... FileUtils: Remove unused get_directory_child_with_suffix(). (*)
  9d28701... Document: Remove unused constants. (*)
  d2dc831... Remove trailing whitespace. (*)
  a958017... UiUtils: Try to show more info when GtkCssProvider fails. (*)
  81f6008... utils_ui: Don't crash when showing error. (*)
  5519aed... Slight improvement. (*)
  0cf169b... UiUtils: Use font-family instead of font with GtkCssProvide (*)
  8d0e9ed... 1.31.5 (*)
  bc1c51d... utils_ui: Properly parse the pango font name. (*)
  e553399... Updated Swedish translation (*)
  b27960f... C++11: Use of std::next(). (*)
  c1e4cdb... 1.31.6 (*)
  793c1c8... Updated Indonesian translation (cherry picked from commit d (*)
  b4b1e7c... Print Layout Edit: Show the whole toolbar. (*)
  575f227... Add Language headers to po files (*)
  92f8c3f... Don't take a shared_ptr<> when the method does not share ow (*)
  897d0f5... More not taking a shared_ptr<> when the function doesn't sh (*)
  408d3a8... Updated Portuguese translation (*)
  8caae98... Avoid an unnecessary comparison to true. (*)
  24542d5... Python code: Remove unnecessary semicolons. (*)
  3fb91d7... Updated Polish translation (*)
  d84b3bb... Updated Portuguese translation (*)
  e983b5a... Updated Polish translation (*)
  84042a5... Use std::weak_ptr instead of shared_ptr for callbacks. (*)
  8b9ce18... glom_python_call(): Handle nulls. (*)
  7d88016... IsoCodes::get_locale_name(): Don't hard code /usr/share/i18 (*)
  cd44eaa... Revert "IsoCodes::get_locale_name(): Don't hard code /usr/s (*)
  7b2163c... Box_Tables::on_adddel_add(): Don't allow a space in a table (*)
  de23ae3... Box_Tables::on_adddel_changed(): Don't try to rename before (*)
  f446d03... Rename some methods. (*)
  a461b57... Updated Czech translation (*)
  8150d79... Revert "Use std::weak_ptr instead of shared_ptr for callbac (*)
  bbfc6a2... Use std::weak_ptr instead of shared_ptr with sigc::bind(). (*)
  d60a3ed... Use Glib::WeakRef instead of Glib::RefPtr with sigc::bind() (*)
  f0b7138... Updated Hungarian translation (*)
  e3a9741... Updated Swedish translation (*)
  2e69031... Updated German translation (*)
  915d43f... Updated Polish translation (*)
  b29224e... Correct indentation to avoid g++6 warning. (*)
  3c226b7... C++11: Use std::unordered_map instead of std::map. (*)
  223ba9f... Use a std::unordered_set instead of a std::unordered_map wi (*)
  057767a... Remove unnecessary typedefs. (*)
  acc0c32... C++11: Remove more unnecessary typedefs. (*)
  d02a2e8... C++11: More use of auto. (*)
  25b6bb3... Don't use static members for simple constants. (*)
  df59b8e... FlowTableWithFields: Remove unused member variable. (*)
  54ac437... Replace most std::list with std::vector. (*)
  61a749a... Avoid a null shared_ptr dereference. (*)
  541df42... Fix the build. (*)
  d2aa83c... Correct some const by-value parameters (*)
  3fa9a74... Avoid unnecessary copying when calling get_format_used(). (*)
  5d29201... Minor indentation fixes. (*)
  bdf9efc... C++11: More use of nullptr. (*)
  c2fe358... C++11: Some using instead of typedef. (*)
  72040e6... C++11: Use c* headers instead of *.h. (*)
  fe3aaec... Don't use 0 for a boolean. (*)
  857e39b... C++11: Use =default for simple copy operations. (*)
  77ba7dc... C++11: Use =default for simple move opertions. (*)
  28c961a... C++11: Specify default move operations. (*)
  e3c2d3c... C++11: More default implementations. (*)
  992fcf2... C++11: Use =default for simple destructors. (*)
  4682ec4... if(): Prefer return/continue shortcut instead of nesting. (*)
  d98af7b... if(): Declare variables inside condition. (*)
  f582beb... if(): continue instead of nesting. (*)
  74687df... Merge branch 'master' into glom-1-32

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