Merge branch 'bug/JAL-1760_restore-hidden-seqs' into develop

diff --combined resources/lang/Messages.properties
index 0cd43c2,9fbe2be..1f5d4cb
--- 1/resources/lang/Messages.properties
--- 2/resources/lang/Messages.properties
+++ b/resources/lang/Messages.properties
@@@ -1,4 -1,4 +1,4 @@@
 -label.view_structureaction.refresh_services = Refresh Services
 +action.refresh_services = Refresh Services
  action.reset_services = Reset Services
  action.merge_results = Merge Results
  action.load_scheme = Load scheme
@@@ -121,7 -121,7 +121,7 @@@ action.save_as_default = Save as defaul
  action.save_as = Save as
  action.save = Save
  action.cancel_fetch = Cancel Fetch
- action.save_omit_hidden_columns = Save / Omit Hidden Columns
+ action.save_omit_hidden_columns = Save / Omit Hidden Regions
  action.change_font = Change Font
  action.change_font_tree_panel = Change Font (Tree Panel)
  action.colour = Colour
@@@ -258,7 -258,6 +258,7 @@@ label.chimera_path = Path to Chimera pr
  label.chimera_path_tip = Jalview will first try any path entered here, else standard installation locations.<br>Double-click to browse for file.
  label.invalid_chimera_path = Chimera path not found or not executable
  label.chimera_missing = Chimera structure viewer not found.<br/>Please enter the path to Chimera (if installed),<br/>or download and install UCSF Chimera.
 +label.chimera_failed = Error opening Chimera - is it installed?\nCheck path in Preferences, Structure
  label.min_colour = Minimum Colour
  label.max_colour = Maximum Colour
  label.use_original_colours = Use Original Colours
@@@ -362,7 -361,7 +362,7 @@@ label.example = Exampl
  label.example_param = Example: {0}
  label.select_file_format_before_saving = You must select a file format before saving!
  label.file_format_not_specified = File format not specified
- label.alignment_contains_hidden_columns = The Alignment contains hidden columns.\nDo you want to save only the visible alignment?
+ label.alignment_contains_hidden_columns = The Alignment contains hidden regions (hidden sequences/columns).\nDo you want to save only the visible alignment?
  label.couldnt_save_file = Couldn't save file: {0}
  label.error_saving_file = Error Saving File
  label.remove_from_default_list = Remove from default list?
@@@ -1150,8 -1149,6 +1150,8 @@@ status.das_feature_fetching_complete = 
  status.fetching_db_refs = Fetching db refs
  status.loading_cached_pdb_entries = Loading Cached PDB Entries
  status.searching_for_pdb_structures = Searching for PDB Structures
 +status.opening_file = opening file
 +status.colouring_chimera = Colouring Chimera
  label.font_doesnt_have_letters_defined = Font doesn't have letters defined\nso cannot be used\nwith alignment data
  label.font_too_small = Font size is too small
  label.error_loading_file_params = Error loading file {0}
@@@ -1244,4 -1241,4 +1244,4 @@@ info.enter_search_text_here = Enter Sea
  info.enter_search_text_to_enable = Enter Search Text to Enable
  info.search_in_annotation_label = Search in {0} Label
  info.search_in_annotation_description = Search in {0} Description
 -info.change_threshold_mode_to_enable = Change Threshold Mode to Enable
 +info.change_threshold_mode_to_enable = Change Threshold Mode to Enable