Add URL parameter support for Bible version

- Read version parameter from URL on page load (?version=esv|?version=nkjv)
- Update URL with version when selection changes
- Enable shareable version-specific URLs like /book/Genesis/chapter/1?version=nkjv

NKJV/18_Job/Chapter_04.md

@@ -2,7 +2,7 @@
 # Chapter 4
 1. Then Eliphaz the Temanite answered and said:
 
-2. "_If_ one attempts a word with you, will you become weary?
+2. "If one attempts a word with you, will you become weary?
 But who can withhold himself from speaking?
 
 3. Surely you have instructed many,
@@ -14,11 +14,11 @@ And you have strengthened the feeble knees;
 5. But now it comes upon you, and you are weary;
 It touches you, and you are troubled.
 
-6. _Is_ not your reverence your confidence?
+6. Is not your reverence your confidence?
 And the integrity of your ways your hope?
 
-7. "Remember now, who _ever_ perished being innocent?
-Or where were the upright _ever_ cut off?
+7. "Remember now, who ever perished being innocent?
+Or where were the upright ever cut off?
 
 8. Even as I have seen,
 Those who plow iniquity
@@ -48,19 +48,19 @@ The hair on my body stood up.
 
 16. It stood still,
 But I could not discern its appearance.
-A form _was_ before my eyes;
-_There was_ silence;
-Then I heard a voice _saying:_
+A form was before my eyes;
+There was silence;
+Then I heard a voice saying:
 
 17. 'Can a mortal be more righteous than God?
 Can a man be more pure than his Maker?
 
 18. If He puts no trust in His servants,
-_If_ He charges His angels with error,
+If He charges His angels with error,
 
 19. How much more those who dwell in houses of clay,
 Whose foundation is in the dust,
-_Who_ are crushed before a moth?
+Who are crushed before a moth?
 
 20. They are broken in pieces from morning till evening;
 They perish forever, with no one regarding.