Merge remote-tracking branch 'kiliman/master' (#185)

* OperatorMonoSSm (Light, Book, Medium, Bold)
New Ligatures:
    - colon_colon
    - exclam_exclam
    - semicolon_semicolon
    - less_less
    - greater_greater
    - hyphen_equal (minus_equal)
    - asterisk_equal
    - slash_equal
    - less_slash_greater
    - less_less_equal
    - quotedbl_quotedbl_quotedbl
    - quotesingle_quotesingle_quotesingle
New Powerline Glyhps:
    - E0A1 (Powerline LN)
    - E0A2 (Powerline lock)
    - E0B1 (Powerline left soft divider)
    - E0B3 (Powerline right soft divider)

Features:
    - ss10 can be used to substitute 'x' for '×'. Eg 0×FF or 800×600
    - 'Equality Spaces' and 'Less-than/Greater-than Horizontal Bar' alternatives are included
    by default, and can be activated via ss11 and ss12 respectively.
    - Corrected and simplified features code to include the missing 'kern' feature for
    fraction numerator and denominator positioning.
    - 'calt.js' will also generate the 'liga' feature.

Edited and repositioned some existing glyphs to be more consistent across font weights.
Created missing glyphs for other weights. Eg 'w_w_w.liga' and 'plus_equal.liga'

* 'calt.js' no longer generates the 'liga' feature.

* Adjusted hinting, no contours changed.

ligature/OperatorMonoSSmLig-Bold/glyphs/percent.alt.xml

@@ -1,32 +1,17 @@
-<Glyph name="percent.alt" lsb="33" width="625">
+<Glyph name="percent.alt" lsb="38" width="625">
     <CharString>
-        -143 91 -90 887 -663 90 255 91 134 90 hstemhm
-        32 95 -73 526 -384 92 46 92 72 90 hintmask 0100010101000000
-        468 745 rmoveto
-        hintmask 0100001000000000
-        -414 -834 113 -53 413 834 rlineto
-        hintmask 0001101000000000
-        -424 -265 rmoveto
-        hintmask 0001110101000000
-        79 53 68 95 93 -44 59 -79 -79 -53 -68 -95 -94 44 -58 79 hvcurveto
-        3 225 rmoveto
-        26 13 -27 -45 -39 -11 -23 -25 -26 -13 26 45 39 11 24 25 hvcurveto
-        hintmask 0100010101000000
-        297 -795 rmoveto
-        79 53 68 95 hvcurveto
-        hintmask 0011110101000000
-        93 -44 59 -79 vhcurveto
-        hintmask 0011110111000000
-        -79 -53 -68 -95 hvcurveto
-        hintmask 0100010111000000
-        -94 44 -58 79 vhcurveto
-        hintmask 0011110111000000
-        3 225 rmoveto
-        26 13 -27 -45 hvcurveto
-        hintmask 1001110111000000
-        -39 -11 -23 -25 -26 -13 26 45 vhcurveto
-        hintmask 0011110111000000
-        39 11 24 25 vhcurveto
+        5 -21 720 -20 hstem
+        41 227 89 226 vstem
+        462 54 rmoveto
+        -20 -15 29 48 54 23 35 28 20 15 -30 -48 -53 -22 -35 -29 hvcurveto
+        -70 vmoveto
+        68 53 62 96 92 -44 56 -61 -67 -54 -62 -97 -92 44 -55 61 hvcurveto
+        -424 63 rmoveto
+        96 -63 452 658 -95 62 rlineto
+        -344 -236 rmoveto
+        -21 -15 29 48 54 23 35 28 21 15 -30 -48 -53 -22 -35 -29 hvcurveto
+        -70 vmoveto
+        68 53 62 96 92 -45 56 -61 -66 -55 -62 -97 -92 45 -55 61 hvcurveto
         endchar
     </CharString>
     <Subrs/>