add eigen alignment test

Change-Id: I8c3c3c8f66c696908e767926e51ef035666a0e05
add test_operator_new

Change-Id: Id7962f5dd161668637f38ea8e4e31f1ac1a92f33
fix alignment issue when using new on 32 bits systems

it fixes issue #67

Change-Id: Ida2745fb3fb30c296fc3b11cb212c91ba2fbe194
ensure generated files are identical on all platforms

Before this fix, they were formatted differently on Windows.
(Note that the result was equivalent, only the formatting differed).

Change-Id: I37c48dafc813a4a353e6c0c953d0bbe906d9a9f7
sanitize gitignore

Change-Id: I7a3cb55b7138b3ee4b139c1158d9fa9ccd6a4520