Convert hscommon, qtlib and cocoalib to submodules

... rather than subtrees. That also represents a small qtlib updates
which needed a code adjustment.

qtlib/locale/zh_CN/LC_MESSAGES/qtlib.po

@@ -1,106 +0,0 @@
-# Translators:
-msgid ""
-msgstr ""
-"Project-Id-Version: hscommon\n"
-"PO-Revision-Date: 2014-03-30 14:55+0000\n"
-"Last-Translator: Virgil Dupras <hsoft@hardcoded.net>\n"
-"Language-Team: Chinese (China) (http://www.transifex.com/p/hscommon/language/zh_CN/)\n"
-"Content-Type: text/plain; charset=UTF-8\n"
-"Content-Transfer-Encoding: utf-8\n"
-"Language: zh_CN\n"
-"Plural-Forms: nplurals=1; plural=0;\n"
-
-#: qtlib/about_box.py:29
-msgid "About {}"
-msgstr ""
-
-#: qtlib/about_box.py:49
-msgid "Version {}"
-msgstr ""
-
-#: qtlib/about_box.py:53
-msgid "Copyright Hardcoded Software 2014"
-msgstr ""
-
-#: qtlib/error_report_dialog.py:39
-msgid "Error Report"
-msgstr ""
-
-#: qtlib/error_report_dialog.py:43
-msgid "Something went wrong. How about reporting the error?"
-msgstr ""
-
-#: qtlib/error_report_dialog.py:49
-msgid ""
-"Error reports should be reported as Github issues. You can copy the error traceback above and paste it in a new issue (bonus point if you run a search to make sure the issue doesn't already exist). What usually really helps is if you add a description of how you got the error. Thanks!\n"
-"\n"
-"Although the application should continue to run after this error, it may be in an unstable state, so it is recommended that you restart the application."
-msgstr ""
-
-#: qtlib/error_report_dialog.py:64
-msgid "Close"
-msgstr ""
-
-#: qtlib/error_report_dialog.py:68
-msgid "Go to Github"
-msgstr ""
-
-#: qtlib/preferences.py:17
-msgid "English"
-msgstr "英语"
-
-#: qtlib/preferences.py:18
-msgid "French"
-msgstr "法语"
-
-#: qtlib/preferences.py:19
-msgid "German"
-msgstr "德语"
-
-#: qtlib/preferences.py:20
-msgid "Chinese (Simplified)"
-msgstr "简体中文"
-
-#: qtlib/preferences.py:21
-msgid "Czech"
-msgstr ""
-
-#: qtlib/preferences.py:22
-msgid "Italian"
-msgstr ""
-
-#: qtlib/preferences.py:23
-msgid "Armenian"
-msgstr ""
-
-#: qtlib/preferences.py:24
-msgid "Russian"
-msgstr ""
-
-#: qtlib/preferences.py:25
-msgid "Ukrainian"
-msgstr ""
-
-#: qtlib/preferences.py:26
-msgid "Dutch"
-msgstr ""
-
-#: qtlib/preferences.py:27
-msgid "Brazilian"
-msgstr ""
-
-#: qtlib/preferences.py:28
-msgid "Spanish"
-msgstr ""
-
-#: qtlib/preferences.py:29
-msgid "Vietnamese"
-msgstr ""
-
-#: qtlib/recent.py:53
-msgid "Clear List"
-msgstr "清空列表"
-
-#: qtlib/search_edit.py:41
-msgid "Search..."
-msgstr ""