Log Message:
Update to 1.1.0

Upstream changes:
stringr 1.1.0

    Add sample datasets: fruit, words and sentences.

    fixed(), regex(), and coll() now throw an error if you use them with \ 
anything other than a plain string (#60). I've clarified that the replacement \ 
for perl() is regex() not regexp() (#61). boundary() has improved defaults when \ 
splitting on non-word boundaries (#58, @lmullen).

    str_detect() now can detect boundaries (by checking for a str_count() > \ 
0) (#120). str_subset() works similarly.

    str_extract() and str_extract_all() now work with boundary(). This is \ 
particularly useful if you want to extract logical constructs like words or \ 
sentences. str_extract_all() respects the simplify argument when used with \ 
fixed() matches.

    str_subset() now respects custom options for fixed() patterns (#79, @gagolews).

    str_replace() and str_replace_all() now behave correctly when a replacement \ 
string contains $s, \\\\1, etc. (#83, #99).

    str_split() gains a simplify argument to match str_extract_all() etc.

    str_view() and str_view_all() create HTML widgets that display regular \ 
expression matches (#96).

    word() returns NA for indexes greater than number of words (#112).