Clean up settings handling (#140)

- Use sublime_lib.NamedSettingsDict to handle settings
- apart from `trailing_spaces_highlight_color` which has special handling,
  get all options directly from settings so that they are always up-to-date
  with user preferences. Previously settings were only read on init.
- remove `trailing_spaces_` prefixes from settings. Settings with prefixes
   are still respected for backward-compatibility.

.gitignore

@@ -1,2 +1,3 @@
 .mypy_cache
 TODO.md
+*.pyc

README.md

@@ -131,7 +131,7 @@ You may change the highlighting color, providing a color scope name such as
  "error", "comment"… just like that:
 
 ``` js
-{ "trailing_spaces_highlight_color": "comment" }
+{ "highlight_color": "comment" }
 ```
 
 The scope should be defined in your current theme file. Here is a dummy,
@@ -164,7 +164,7 @@ You can make trailing spaces "invisible" yet still rely on the deletion
 command. To do that, set the highlight scope to an empty string:
 
 ``` js
-{ "trailing_spaces_highlight_color": "" }
+{ "highlight_color": "" }
 ```
 
 Beware: this is **not** the same as *disabling* the highlighting (see "On-
@@ -181,7 +181,7 @@ each time you are about to start a new word, the space you type is matched as
 a trailing spaces. Currently edited line can thus be ignored:
 
 ``` js
-{ "trailing_spaces_include_current_line": false }
+{ "include_current_line": false }
 ```
 
 Even though the trailing spaces are not highlighted on this line, they are
@@ -195,7 +195,7 @@ When firing the deletion command, empty lines are matched as trailing regions,
 and end up being deleted. You can specifically ignore them:
 
 ``` js
-{ "trailing_spaces_include_empty_lines": false }
+{ "include_empty_lines": false }
 ```
 
 They will not be highlighted either.
@@ -216,7 +216,7 @@ regions. You may either:
 - specify as a setting:
 
 ``` js
-{ "trailing_spaces_modified_lines_only": true }
+{ "modified_lines_only": true }
 ```
 
 There is also a command to toggle this feature on and off. You may thus define
@@ -234,7 +234,7 @@ Setting this to `true` will ensure trailing spaces are deleted when you save
 your document. It abides by the other settings, such as *Modified Lines Only*.
 
 ``` js
-{ "trailing_spaces_trim_on_save": true }
+{ "trim_on_save": true }
 ```
 
 ### Save After Trim
@@ -246,7 +246,7 @@ around could prove useful. Setting this to `true` will automatically save your
 document after you fire the deletion command:
 
 ``` js
-{ "trailing_spaces_save_after_trim": true }
+{ "save_after_trim": true }
 ```
 
 It is obviously ignored if *Trim On Save* is on.
@@ -265,7 +265,7 @@ to cause slowness (for instance, you already installed several *heavy*
 plugins), you can disable live matching:
 
 ``` js
-{ "trailing_spaces_enabled": false }
+{ "enabled": false }
 ```
 
 In this case, for no trailing regions are matched until you request them to be
@@ -291,7 +291,7 @@ By default, the scope under the mouse cursor is shown by pressing
 
 ``` js
 // Trailing spaces for find results, build output and markdown are ignored
-{ "trailing_spaces_scope_ignore": ["text.find-in-files", "source.build_output", "text.html.markdown"] }
+{ "scope_ignore": ["text.find-in-files", "source.build_output", "text.html.markdown"] }
 ```
 
 ### For power-users only!
@@ -303,7 +303,7 @@ The default threshold is around 1 million of characters. This is
 configurable (in "File Settings - User") and the unit is number of chars:
 
 ``` js
-{ "trailing_spaces_file_max_size": 1000}
+{ "file_max_size": 1000}
 ```
 
 #### The matching pattern
@@ -316,7 +316,7 @@ to abide by another definition to cover edge-cases, go ahead:
 
 ``` js
 // *danger* will match newline chars and many other folks
-"trailing_spaces_regexp": "[\\s]+"
+"regexp": "[\\s]+"
 ```
 
 About Sublime Text's built-in features

dependencies.json

@@ -0,0 +1,7 @@
+{
+    "*": {
+        "*": [
+            "sublime_lib"
+        ]
+    }
+}