update to word2phrase.c

fix start in word2phrase

add -word-list option to word2phrase

revise distance.c to allow for restrict view of vocab

add original word2vec

change separator in word2phrase.c

change distance.c to read model in text format

bivec do not save avg vectors, word2phrase save bigrams

revert back option to save avg vecs

further remove warnings in bivec.c

remove warnings in bivec.c

change sh to bash in shell scripts

minor fixes to run_mono.sh and bivec.c

handle rare dataset evaluateWordSim

update README