Merge pull request #39 from jgsmith/master

Add better in-line space handling for interlinear additions
loading layer annotations into second datastore
first decent implementation of reading text mode
default value for mode
removed unnecessary extra code
gluing mode and readingTxt components
some decls for readingtxt
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exposing layers
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Merge pull request #40 from jgsmith/master

add horizontal scroll ability for text content zones
fixed small bug that duplicated results at first search
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moved first search bug fix to main.js
not using bbq.removeState() to avoid unwanted hashchange
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using theirs
loading xml layer