Added symboler specific button class
Modified style properties for pisak buttons
Set some symboler buttons to disabled
refs #1000
Added symbols manager based on configobj
Added funcs for creating model, getting all symbols,
getting symbols from category, adding to category, assigning text
Included new module in symboler app
Added readymade ini file with symbols
refs #1009
Added funcs for loading and saving symbols entries
Deleted unused modules
refs #1001 #1002 #1009
Proper path to symbols entries storage file
refs #1009
Added func for getting symbols by ids
Specified configs encodings
refs #1009
More clear name of symbols manager private func
refs #1009
Implemented save and load handlers for symboler
Implemented methods of symboler dialog window
Imports of symbols manager
Adjusted symboler data source to new data shape
refs #1001 #1002
Proper amount of args to do save symboler func
refs #1001
Entry symbols generation more unified
Entry stores symbols ids
Corrected dicts operations
Added params to the entry in symboler json
refs #1001 #1002
Added tile container utility class
Applied it to the pisak pager
Applied it to the symboler entry
refs #1001 #1002
Merge branch 'symbols-ini' into symio
Moved some props due to mro issues
Corrent button initialization in symboler pop up
refs #1001 #1002
Merge branch 'disabled' into symio

Conflicts:
	pisak/symboler/widgets.py
Added func for getting one symbol from ini file
Various fixes and improvements of symboler io so that it works
Load and save buttons not disabled
Fix of one issue in scanning observers
refs #1001 #1002
Fix scanning color
Fix scanning indexing issues with pop up
refs #1001 #1002