random fixes for 17

dictionary reloading now resets the frequencies of the existing words…

… to the factory default

fixed 0-key and 1-key showing hardcoded punctuation list in Predictiv…

…e mode, instead of what is defined in the respective Language class

Csv dictionary support (sspanak#145)

* the dictionary loader now supports word frequencies

* word frequency validation upon building

* added default word frequencies to all dictionaries

* updated documentation

fixed holding keys not working in some cases and removed the 'hold' f…

…unction for some keys

fixed holding keys not working in some cases and removed the 'hold' f…

…unction for some keys

swapped the positions of '.' and ','

no unnecessary automatic space, when there is already a space after t…

…he cursor

Building aborts after 50 dictionary validation errors, otherwise it k…

…eeps going forever

Building aborts after 50 dictionary validation errors, otherwise it k…

…eeps going forever