Updated the analyze to remove a bug

If a file that was incomplete (a line only half written), the search
for the maximum likelihood value would fail returning an index error.
This error is now dealt with in a try except statement, and is more
talkative.
removed any build things from the wrapper_wmap directory
removed documentation folder
Bug fix: covariance matrix input handling

when given an input covariance matrix, 1-sigma errors should be used
for the other varying parameters with no other information. It now
acts like that again.
Bug fix: behaviour for no varying parameters

when called with no varying parameters, Monte Python should call the
cosmological module and evaluate the likelihood of the desired
experiments for these fixed values. This bug was instead using default
Class values.
Note that this was only affecting the behaviour where every parameters
were fixed, not when only some of them were.