translations update. docs partial update

README.md

@@ -19,6 +19,7 @@ Toxygen is powerful cross-platform [Tox](https://tox.chat/) client written in pu
 - [x] 1v1 messages
 - [x] File transfers
 - [x] Audio calls
+- [x] Video calls
 - [x] Plugins support
 - [x] Chat history
 - [x] Emoticons
@@ -42,7 +43,6 @@ Toxygen is powerful cross-platform [Tox](https://tox.chat/) client written in pu
 - [x] Changing nospam
 - [x] File resuming
 - [x] Read receipts
-- [ ] Video calls
 - [ ] Desktop sharing
 - [ ] Group chats
 

docs/contributing.md

@@ -19,4 +19,4 @@ Note that we have a lot of branches for different purposes. Master branch is for
 
 # Translations
 
-Help us translate Toxygen! Translation can be created using pyside-lupdate (``pyside-lupdate toxygen.pro``) and QT Linguist.
+Help us translate Toxygen! Translation can be created using pylupdate (``pylupdate5 toxygen.pro``) and QT Linguist.

docs/plugin_api.md

@@ -1,6 +1,6 @@
 # Plugins API
 
-In Toxygen plugin is single python (supported Python 3.0 - 3.4) module (.py file) and directory with data associated with it. 
+In Toxygen plugin is single python (supported Python 3.4 - 3.6) module (.py file) and directory with data associated with it. 
 Every module must contain one class derived from PluginSuperClass defined in [plugin_super_class.py](/src/plugins/plugin_super_class.py). Instance of this class will be created by PluginLoader class (defined in [plugin_support.py](/src/plugin_support.py) ). This class can enable/disable plugins and send data to it. 
 
 Every plugin has its own full name and unique short name (1-5 symbols). Main app can get it using special methods. 
@@ -45,7 +45,7 @@ Import statement will not work in case you import module that wasn't previously
 
 About GUI:
 
-It's strictly recommended to support both PySide and PyQt4 in GUI. Plugin can have no GUI at all.
+GUI is available via PyQt5. Plugin can have no GUI at all.
 
 Exceptions:
 

docs/plugins.md

@@ -1,6 +1,6 @@
 # Plugins
 
-Toxygen is the first [Tox](https://tox.chat/) client with plugins support. Plugin is Python 3.4 module (.py file) and directory with plugin's data which provide some additional functionality. 
+Toxygen is the first [Tox](https://tox.chat/) client with plugins support. Plugin is Python 3.4 - 3.6 module (.py file) and directory with plugin's data which provide some additional functionality. 
 
 # How to write plugin