initial octave support (#121)

Author: chubin

README.md

@@ -698,7 +698,7 @@ Some languages has the one-liners-cheat sheet, `1line`:
 
 ![cheat.sh usage](http://cheat.sh/files/supported-languages-c++.png)
 
-At the moment, cheat.sh covers the 55 following programming languages (alphabetically sorted):
+At the moment, cheat.sh covers the 57 following programming languages (alphabetically sorted):
 
 |Prefix     |Language  |Basics|One-liners|Weirdness|StackOverflow|
 |-----------|----------|------|----------|---------|-------------|
@@ -739,6 +739,7 @@ At the moment, cheat.sh covers the 55 following programming languages (alphabeti
 |`lua/`     |Lua       |✓     |          |         |✓            |
 |`matlab/`  |MATLAB    |✓     |          |         |✓            |
 |`ocaml/`   |OCaml     |✓     |          |         |✓            |
+|`octave/`  |Octave    |✓     |          |         |✓            |
 |`perl/`    |Perl      |✓     |✓         |         |✓            |
 |`perl6/`   |Perl 6    |✓     |✓         |         |✓            |
 |`php/`     |PHP       |✓     |          |         |✓            |

lib/adapter/learnxiny.py

@@ -552,6 +552,12 @@ class LearnMatlabAdapter(LearnXYAdapter):
     _filename = "matlab.html.markdown"
     _splitted = False
 
+class LearnOctaveAdapter(LearnXYAdapter):
+    "Learn Octave in Y Minutes"
+    prefix = "octave"
+    _filename = "matlab.html.markdown"
+    _splitted = False
+
 class LearnKotlinAdapter(LearnXYAdapter):
     """
     Learn Kotlin in Y Minutes

lib/adapter/rosetta.py

@@ -132,5 +132,5 @@ def is_found(self, _):
         return False
 
     def __init__(self):
-        Adapter.__init__()
+        Adapter.__init__(self)
         self._rosetta_code_name = self._load_rosetta_code_names()

lib/languages_data.py

@@ -45,6 +45,7 @@
     "mongo" :   pygments.lexers.JavascriptLexer,
     "objective-c": pygments.lexers.ObjectiveCppLexer,
     "ocaml"     : pygments.lexers.OcamlLexer,
+    "octave"    : pygments.lexers.OctaveLexer,
     "perl"      : pygments.lexers.PerlLexer,
     "perl6"     : pygments.lexers.Perl6Lexer,
     "php"       : pygments.lexers.PhpLexer,
@@ -95,6 +96,7 @@
     'wolfram'   :   'mathematica',
     'mma'       :   'mathematica',
     'wolfram-mathematica': 'mathematica',
+    'm'         :   'octave',
 }
 
 VIM_NAME = {
@@ -203,6 +205,7 @@
 VIM_FT_NAME = {
     'asm':          'assembler',
     'javascript':   'js',
+    'octave':       'matlab',
 }
 
 VSCODE_FT_NAME = {