Adds an update-version target to Makefile
Insert bug with xml_use_xhtml

Quoted message from Kevin McCarthy <kevin@8t8.us>:
    I use xmledit with the xml_use_xhtml setting turned on.  In this
    mode, if you type <br> at the end of a line (e.g. you are composing,
    not editing ), it automatically adds the "/" for you, but then
    leaves you in insert mode *before* the trailing >.

    It looks like it's trying to do another "l" and then call
    startinsert, but since you're at eol the "l" fails and you start
    inserting just before the ">".

    My vim scripting knowledge is pretty small, but attached is a patch
    which I believe fixes this problem.
Initial testing environment
(WIP)
Removes rvmec and updates Gemmfiles
Adds Rakefile
Fixes paths and spec_helper
Adds travis.yml
Merge branch 'master' into tests
Adds testing docs to README
Adds hot to contribut to README