version: drop support for Mercurial 1.9.3

Upcoming patches will clean up some code that makes hg-git work with Mercurial
versions < 2.0.

Makefile

@@ -25,7 +25,6 @@ tests-%:
 # latest Ubuntu LTS release (2.0.2 for 12.04 LTS) may be dropped if they
 # interfere with new development.  The latest released minor version should be
 # listed for each major version; earlier minor versions are not needed.
-all-version-tests: tests-1.9.3 tests-2.0.2 tests-2.1.2 tests-2.2.3 \
-                   tests-2.8.1 tests-tip
+all-version-tests: tests-2.0.2 tests-2.1.2 tests-2.2.3 tests-2.8.1 tests-tip
 
 .PHONY: tests all-version-tests

README.md

@@ -24,7 +24,7 @@ Dependencies
 This plugin is implemented entirely in Python - there are no Git
 binary dependencies, you do not need to have Git installed on your
 system.  The only dependencies are Mercurial and Dulwich.  The plugin
-is known to work on Hg versions 1.9.3 through 2.3.1 and requires at least
+is known to work on Hg versions 2.0.2 through 2.3.1 and requires at least
 Dulwich 0.8.6.
 
 Usage
@@ -138,7 +138,7 @@ your `~/.hgrc` file look something like this:
 That will enable the Hg-Git extension for you.
 
 This plugin is currently tested against the following Mercurial versions:
- * 1.9.3
+
  * 2.0.2
  * 2.1.2
  * 2.2.3

hggit/__init__.py

@@ -44,7 +44,7 @@
 import gitrepo, hgrepo
 from git_handler import GitHandler
 
-testedwith = '1.9.3 2.0.2 2.1.2 2.2.3 2.8.1'
+testedwith = '2.0.2 2.1.2 2.2.3 2.8.1'
 buglink = 'https://bitbucket.org/durin42/hg-git/issues'
 
 # support for `hg clone git://github.com/defunkt/facebox.git`