Update version number and update documentation

* Use `git clone` directly during clone (#289, #323)
* Fix compatibility bug with Git completions (#318, #321)
* Support relative paths for --yadm-* and -w (#301)
* Improve parsing of if-statement in default template (#303)
* Read files without running cat in subshells (#317)
* Improve portability of updating read-only files (#320)
* Various code improvements (#306, #307, #311)

CONTRIBUTORS

@@ -4,13 +4,13 @@ Tim Byrne
 Erik Flodin
 Martin Zuther
 Jan Schulz
+Ross Smith II
 Jonathan Daigle
 Luis López
 Tin Lai
 Espen Henriksen
 Cameron Eagans
 Klas Mellbourn
-Ross Smith II
 Tomas Cernaj
 jonasc
 Chad Wade Day, Jr
@@ -28,8 +28,10 @@ Daniel Wagenknecht
 Stig Palmquist
 Patrick Hof
 con-f-use
+Bram Ceulemans
 Travis A. Everett
 Sheng Yang
+Jared Smartt
 Adam Jimerson
 addshore
 Tim Condit