shift variable local again
remove all references to global shift variable
all variables now restore when clear is restored
Merge pull request #106 from OwenMcGirr/iss#104#105

multiple issues (#105, #104)
add code to call wordsLetters after clear is restored
wordString now restore when clear is restored
remove unnecessary call to predict after clear is restored
Merge pull request #107 from OwenMcGirr/iss#104#105

more code for #104, #105
add isWordDelimeter function
add general code for iss#108
updatePredState method working properly
all input changes now call updatePredState
wordsLettersAct now calls updatePredState
Merge pull request #110 from OwenMcGirr/iss#108

implemented functions to update word prediction