Initial release

This was released with xAct 1.0.4
Added TexMatrix. Fixed TexFactor[-1]
Added spaces after indices with backslash to avoid problems like "\alphab".
Simplify StringReplace
Bump version to 0.3.1
Various improvements

* Added TexIndexForm and fixed bug with coloured indices.
* Added $TexSmallFractionExponent
* Added the option TexBreakBy -> "TexPoint" to TexBreak
* Added TexPrintAlignedEquations
* Fixed TexBreak so it only breaks at bracket level 0. -TeXForm crashes when given a StyleBox, so now we remove style boxes before passing anything to TexForm. This also gives a better fix for the problem with the coloured indices.
* FormatTexBasis introduced.