add new travis tests with pthread support

.travis.yml

@@ -90,6 +90,14 @@ env:
     BUILDSCRIPT="run.sh"
     BUILDNAME="CLEANSTACK+NOTABLES+SMALL+NO_ASM+NO_TIMING_RESISTANCE"
     BUILDOPTIONS="-DLTC_CLEAN_STACK -DLTC_NO_TABLES -DLTC_SMALL_CODE -DLTC_NO_ECC_TIMING_RESISTANT -DLTC_NO_RSA_BLINDING"
+  - |
+    BUILDSCRIPT="run.sh"
+    BUILDNAME="PTHREAD"
+    BUILDOPTIONS="-DLTC_PTHREAD"
+  - |
+    BUILDSCRIPT="run.sh"
+    BUILDNAME="CLEANSTACK+NOTABLES+SMALL+NO_ASM+NO_TIMING_RESISTANCE+PTHREAD"
+    BUILDOPTIONS="-DLTC_CLEAN_STACK -DLTC_NO_TABLES -DLTC_SMALL_CODE -DLTC_NO_ECC_TIMING_RESISTANT -DLTC_NO_RSA_BLINDING -DLTC_PTHREAD"
   - |
     BUILDSCRIPT="testbuild.sh"
     BUILDNAME="NOTEST"