Update ICU to 58.1

source/data/translit/ch_ch_FONIPA.txt

Index: source/data/translit/ch_ch_FONIPA.txt
diff --git a/source/data/translit/ch_ch_FONIPA.txt b/source/data/translit/ch_ch_FONIPA.txt
old mode 100755
new mode 100644
index e688ebf7373aa692aad151a9cc9134069dcfbb94..54554245d9719bc4d838bb111bb7364ddd639109
--- a/source/data/translit/ch_ch_FONIPA.txt
+++ b/source/data/translit/ch_ch_FONIPA.txt
@@ -1,22 +1,35 @@
-# ***************************************************************************
-# *
-# *  Copyright (C) 2004-2015, International Business Machines
-# *  Corporation; Unicode, Inc.; and others.  All Rights Reserved.
-# *
-# ***************************************************************************
+# © 2016 and later: Unicode, Inc. and others.
+# License & terms of use: http://www.unicode.org/copyright.html#License
+#
 # File: ch_ch_FONIPA.txt
-# Generated from CLDR 
+# Generated from CLDR
 #
 
+# Transformation from Chamorro (ch) to its IPA transcription (ch_FONIPA).
+#
+# http://en.wikipedia.org/wiki/Chamorro_language#Orthography
+# http://www.omniglot.com/writing/chamorro.htm
+# http://guampedia.com/chamorro-orthography-rules/
+# http://finochamoru.blogspot.com/2009/04/leksion-chamoru-pronunsiasion.html
+#
+# Recorded sound samples: http://www.chamorro.com/fino/fino.html
+#
+# http://guampedia.com/chamorro-orthography-rules/ lists in section 3.b)
+# graphemes that would be used for loanwords/proper names. Most examples
+# are Spanish. Our rules thus generate the Spanish sounds [θ], [x], [β]
+# and [w] even though these sounds are not used by the Chamorro language.
 ::Lower;
 ::NFC;
-
 \' → ʔ;
 ’ → ʔ;
-
+# The IPA chart from Omniglot appears to be mixing up [æ] and [ɑ] when
+# explaining how to pronounce ‹a› and ‹å›. The language course on
+# finochamoru.blogspot.com copies the pronunciation chart from Omniglot,
+# but then explains that ‹å› gets prounounced like in English ‹father›,
+# which would be [ɑ]. Also, the sound samples on www.chamorro.com pronounce
+# ‹a› as [æ] and ‹å› as [ɑ].
 a → æ;
 å → ɑ;
-
 b → b;
 ch → t\u0361s;
 {c} [eéií] → θ; # loanwords
@@ -49,11 +62,11 @@ w → w; # loanwords
 {x} h?[aáåeéiíoóuú$] → ks; # loanwords
 {x} [^aáåeéiíoóuú$] → s; # loanwords
 x → ks ; # loanwords
-
+# Wikipedia [http://en.wikipedia.org/wiki/Chamorro_language#Orthography]
+# writes that ‹y› gets pronounced as [d\u0361z], while Omniglot says [d\u0361ʒ].
 y → d\u0361z;
-
 \- → \.; # hyphen is a syllable boundary, eg ‹sena-ta›
-
+# Handle geminated consonants.
 ::Null;
 bb → bː;
 dd → dː;
@@ -68,5 +81,5 @@ pp → pː;
 rr → rː;
 ss → sː;
 tt → tː;
-
 ::NFC;
+