Merge pull request ACM-SIAM-KAUST-chapter#25 from hadjimy/master

Update material for sessions 1-4.

Author: hadjimy

data/stockholm_temp.txt data/session2/stockholm_temp.txtdata/stockholm_temp.txt renamed to data/session2/stockholm_temp.txt

@@ -60,7 +60,7 @@
        "    line-height: 130%;\n",
        "    font-size: 125%;\n",
        "    width:1100px;\n",
-       "    margin-left: auto;\n",
+       "    margin-left: 0em;\n",
        "    margin-right: auto;\n",
        "}\n",
        "\n",
@@ -163,6 +163,9 @@
     "Parts of this tutorial re-use <a href=\"https://github.com/jrjohansson/scientific-python-lectures/\">Scientific Python lectures</a> by <a href=\"https://github.com/jrjohansson\">Robert Johansson</a> linsensed under <a href=\"https://creativecommons.org/licenses/by/3.0/\">Creative Commons Attribution 3.0</a>.\n",
     "<br/><br/>\n",
     "\n",
+    "Presented on 26 February, 2017.\n",
+    "<br/><br/>\n",
+    "\n",
     "**Prerequisites:** *No prerequisites.*\n",
     "</div>"
    ]
@@ -362,7 +365,7 @@
      "name": "stdout",
      "output_type": "stream",
      "text": [
-      "10000 loops, best of 3: 152 µs per loop\n"
+      "1000 loops, best of 3: 184 µs per loop\n"
      ]
     }
    ],
@@ -543,7 +546,7 @@
      "name": "stdout",
      "output_type": "stream",
      "text": [
-      "['__doc__', '__loader__', '__name__', '__package__', '__spec__', 'acos', 'acosh', 'asin', 'asinh', 'atan', 'atan2', 'atanh', 'ceil', 'copysign', 'cos', 'cosh', 'degrees', 'e', 'erf', 'erfc', 'exp', 'expm1', 'fabs', 'factorial', 'floor', 'fmod', 'frexp', 'fsum', 'gamma', 'gcd', 'hypot', 'inf', 'isclose', 'isfinite', 'isinf', 'isnan', 'ldexp', 'lgamma', 'log', 'log10', 'log1p', 'log2', 'modf', 'nan', 'pi', 'pow', 'radians', 'sin', 'sinh', 'sqrt', 'tan', 'tanh', 'tau', 'trunc']\n"
+      "['__doc__', '__file__', '__loader__', '__name__', '__package__', '__spec__', 'acos', 'acosh', 'asin', 'asinh', 'atan', 'atan2', 'atanh', 'ceil', 'copysign', 'cos', 'cosh', 'degrees', 'e', 'erf', 'erfc', 'exp', 'expm1', 'fabs', 'factorial', 'floor', 'fmod', 'frexp', 'fsum', 'gamma', 'gcd', 'hypot', 'inf', 'isclose', 'isfinite', 'isinf', 'isnan', 'ldexp', 'lgamma', 'log', 'log10', 'log1p', 'log2', 'modf', 'nan', 'pi', 'pow', 'radians', 'sin', 'sinh', 'sqrt', 'tan', 'tanh', 'tau', 'trunc']\n"
      ]
     }
    ],
@@ -1195,15 +1198,6 @@
     "* Arithmetic operators `+`, `-`, `*`, `/`, `//` (integer division), '**' power\n"
    ]
   },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "metadata": {
-    "collapsed": true
-   },
-   "outputs": [],
-   "source": []
-  },
   {
    "cell_type": "code",
    "execution_count": 34,
@@ -3482,7 +3476,7 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "*Copyright 2017, Maruan Al-Shedivat, Yiannis Hadjimichael, Liam Mencel, ACM Student Chapter.*"
+    "*Copyright 2017, ACM/SIAM Student Chapter of King Abdullah University of Science and Technology*"
    ]
   }
  ],