Doesn't build under windows

[AlecZorab]

> compile
Generating Scalatex Sources...
[info] Compiling 3 Scala sources to C:\dev\prj\fastparse\readme\target\scala-2.11\classes...
[error] C:\dev\prj\fastparse\readme\target\scala-2.11\src_managed\main\scalatex\Main.scala:5: invalid escape character
[error]             wd = ammonite.ops.Path("C:\dev\prj\fastparse"),
[error]                                        ^
[error] C:\dev\prj\fastparse\readme\target\scala-2.11\src_managed\main\scalatex\Main.scala:5: invalid escape character
[error]             wd = ammonite.ops.Path("C:\dev\prj\fastparse"),
[error]                                            ^
[error] C:\dev\prj\fastparse\readme\target\scala-2.11\src_managed\main\scalatex\Main.scala:6: invalid escape character
[error]             output = ammonite.ops.Path("C:\dev\prj\fastparse\readme\target\scalatex"),
[error]                                            ^
[error] C:\dev\prj\fastparse\readme\target\scala-2.11\src_managed\main\scalatex\Main.scala:6: invalid escape character
[error]             output = ammonite.ops.Path("C:\dev\prj\fastparse\readme\target\scalatex"),
[error]                                                ^
[error] C:\dev\prj\fastparse\readme\target\scala-2.11\src_managed\main\scalatex\Main.scala:6: invalid escape character
[error]             output = ammonite.ops.Path("C:\dev\prj\fastparse\readme\target\scalatex"),
[error]                                                                            ^
[error] C:\dev\prj\fastparse\readme\target\scala-2.11\src_managed\main\scalatex\Readme.scala:7: invalid escape character
[error]   def apply(): Frag = _root_.scalatex.twf("C:\dev\prj\fastparse\readme\Readme.scalatex")
[error]                                               ^
[error] C:\dev\prj\fastparse\readme\target\scala-2.11\src_managed\main\scalatex\Readme.scala:7: invalid escape character
[error]   def apply(): Frag = _root_.scalatex.twf("C:\dev\prj\fastparse\readme\Readme.scalatex")
[error]                                                   ^
[error] C:\dev\prj\fastparse\readme\target\scala-2.11\src_managed\main\scalatex\Readme.scala:7: invalid escape character
[error]   def apply(): Frag = _root_.scalatex.twf("C:\dev\prj\fastparse\readme\Readme.scalatex")
[error]                                                                        ^
[error] 8 errors found
[error] (readme/compile:compileIncremental) Compilation failed
[error] Total time: 2 s, completed 01-Jun-2015 11:27:18

Derives from lihaoyi/Scalatex#9.

[lihaoyi]

modules/compile should do it for you.

We can't use root to aggregate things, because then ~readme/run won't work, because SBT is stupid